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Dr. Mo Wang
Guangzhou University

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0 Green Infrastructure
0 Low Impact Development
0 Scenario Development
0 Stormwater Management
0 Landscape Planning and Design

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Stormwater Management

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Review article
Published: 11 November 2020 in Sustainable Cities and Society
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Bioretention system (BS), a low impact development (LID) practice, is a natural and decentralized design implemented into the built environment for managing storm runoff widely. However, high uncertainties regarding the efficiency of BS over their life cycle may result in overestimates of the actual performance. Uncertainty of climate change may also limit the effectiveness of BSs. To provide BS that efficiently controls surface runoff, this study proposes a modeling method (General circulation models) for simulating the performances of BSs over its life cycle under a single climate change scenario (RCP 8.5). A case study in Guangzhou shows extreme storms are becoming more frequent but with shorter duration under a high-emissions scenario. The long-term efficiencies of BSs in reducing peak flow and runoff volume were examined during the simulated period in the Stormwater Management Model. Performance improved as the implementation area increased, but the marginal increase shrank. The overall efficiency of the BS fell as its structure aged and climate change worsened. BSs are effective for small rainfall events, with peak flow and runoff volume reduced by more than 75 % by BSs covering more than 5% of the catchment area, given rainfall in the 0–25 % percentile range. But many extreme storms may not be effectively mitigated (reduction of less than 25 %), even with very large BS areas. Performance will be even more limited in the presence of highly impervious catchment. The modeling method and results of this study, which prescribe a holistic and dynamic consideration in evaluation of BS, can help improve decision support systems for LID planning.

ACS Style

Mo Wang; Dongqing Zhang; Zhilin Wang; Shiqi Zhou; Soon Keat Tan. Long-term performance of bioretention systems in storm runoff management under climate change and life-cycle condition. Sustainable Cities and Society 2020, 65, 102598 .

AMA Style

Mo Wang, Dongqing Zhang, Zhilin Wang, Shiqi Zhou, Soon Keat Tan. Long-term performance of bioretention systems in storm runoff management under climate change and life-cycle condition. Sustainable Cities and Society. 2020; 65 ():102598.

Chicago/Turabian Style

Mo Wang; Dongqing Zhang; Zhilin Wang; Shiqi Zhou; Soon Keat Tan. 2020. "Long-term performance of bioretention systems in storm runoff management under climate change and life-cycle condition." Sustainable Cities and Society 65, no. : 102598.

Journal article
Published: 09 April 2020 in Journal of Environmental Sciences
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Phosphine (PH3) is an important factor driving the outbreak of cyanobacterial blooms that produce toxic microcystin threating human health. To clarify the physiological and biochemical responses of cyanobacteria to PH3 under elevated CO2 concentration, Microcystis aeruginosa was used in the coupling treatment of 1000 ppmv CO2 and PH3 at different concentrations respectively. The chlorophyll a (Chl-a), carotenoid, net photosynthetic rate and total protein of M. aeruginosa exhibited evidently increasing tendency under the coupling treatment of 1000 ppmv CO2 and PH3 at different concentrations (7.51 × 10−3, 2.48 × 10−2, 7.51 × 10−2 mg/L). The coupling treatments resulted in the higher concentrations of Chl-a and carotenoid of M. aeruginosa, compared to those in the control and the treatment with CO2 alone, and their enhancement increased with the increase in PH3 concentrations. The total antioxidant capacity (T-AOC) in the coupling treatment with CO2 and PH3 of 2.48 × 10−2 mg/L and 7.51 × 10−3 mg/L showed increasing tendency, compared to the treatment with PH3 alone. Additionally, the coupling treatment with 1000 ppmv CO2 and PH3 also altered the pH and DO level in the culture medium. In this regard, the coupling treatment with CO2 and PH3 at an appropriate concentration can enhance the resistance of M. aeruginosa to PH3 toxicity and is beneficial to the reproduction of M. aeruginosa, presumably resulting in potential for the outbreak of cyanobacteria bloom. Given the concern about global warming and the increase in atmospheric CO2 level, our research laid a foundation for the scientific understanding of the correlation between PH3 and cyanobacteria blooms.

ACS Style

Xiaojun Niu; Dongqing Zhang; Runyuan Zhang; Qi Song; Yankun Li; Mo Wang. Physiological and biochemical responses of Microcystis aeruginosa to phosphine (PH3) under elevated CO2. Journal of Environmental Sciences 2020, 94, 171 -178.

AMA Style

Xiaojun Niu, Dongqing Zhang, Runyuan Zhang, Qi Song, Yankun Li, Mo Wang. Physiological and biochemical responses of Microcystis aeruginosa to phosphine (PH3) under elevated CO2. Journal of Environmental Sciences. 2020; 94 ():171-178.

Chicago/Turabian Style

Xiaojun Niu; Dongqing Zhang; Runyuan Zhang; Qi Song; Yankun Li; Mo Wang. 2020. "Physiological and biochemical responses of Microcystis aeruginosa to phosphine (PH3) under elevated CO2." Journal of Environmental Sciences 94, no. : 171-178.

Journal article
Published: 31 March 2020 in Journal of Environmental Management
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Investigation of the cost-effectiveness of low-impact development (LID) practices at the hectare scale in response to impacts of possible climate change was conducted using representative concentration pathways (RCPs). An LID project in Guangzhou has been selected to illustrate changes in the hydrologic performance for alternative source control strategies for a variety of future climate models and scenarios. Frequent storms of shorter duration in RCP 8.5 cause more dramatic fluctuation of hydrologic performance. Hydrologic performance of LID practices on reducing runoff volume and peak flow in test catchment are different in climate scenarios. Based on the constraints of life cycle costs and environmental impacts of LID alternatives, comprehensive strategies were found effective in managing surface runoff at the source to adapt to the influence of climate change. The methodology described herein could be useful in considering LID practices for critical source management with limited budgets and considering environmental impacts under long-term climate change.

ACS Style

Zhilin Wang; Shiqi Zhou; Mo Wang; Dongqing Zhang. Cost-benefit analysis of low-impact development at hectare scale for urban stormwater source control in response to anticipated climatic change. Journal of Environmental Management 2020, 264, 110483 .

AMA Style

Zhilin Wang, Shiqi Zhou, Mo Wang, Dongqing Zhang. Cost-benefit analysis of low-impact development at hectare scale for urban stormwater source control in response to anticipated climatic change. Journal of Environmental Management. 2020; 264 ():110483.

Chicago/Turabian Style

Zhilin Wang; Shiqi Zhou; Mo Wang; Dongqing Zhang. 2020. "Cost-benefit analysis of low-impact development at hectare scale for urban stormwater source control in response to anticipated climatic change." Journal of Environmental Management 264, no. : 110483.

Journal article
Published: 06 November 2019 in Environmental Pollution
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This study systematically explored the distribution of perfluoroalkyl substances (PFASs) through soil adsorption and plant bioaccumulation in aquatic plant-based systems, derived from a surface flow constructed wetland (CW) planted with Typha angustifolia. The water-soil-plant systems were fortified with eight perfluoroalkyl subsntances (PFASs) at different concentrations. The potential for individual PFAS adsorption onto soil substrate and bioaccumulation in the plants increased with the increasing PFAS initial concentrations. Longer-chain PFASs exhibited higher affinity to soil substrate compared to shorter-chain PFASs. The highest concentration in the soil was observed for PFOS (51.3 ng g−1), followed by PFHxS (9.39 ng g−1), and PFOA (5.53 ng g−1) at low PFAS level. The perfluoroalkyl chain length dependent trend was also seen in the roots with the highest individual PFAS concentration for PFOS (68.9 ng g−1), followed by PFOA (18.5 ng g−1) and PFHxS (13.4 ng g−1). By contrast, shorter-chain PFASs were preferentially translocated from roots to shoots in Typha angustifolia. A significant (p < 0.05) positive correlation between bioaccumulation factor (BAFplant/water) (whole plant) and perfluoroalkyl chain length was observed. PFASs content in the plant compartments increased with increasing PFAS concentrations in the soil. Mass balance analysis indicates that approximately 40.7–99.6% of PFAS mass added to the system was adsorbed onto the soil and bioaccumulated in the plant tissues of T. angustifolia. Soil adsorption played a vital role in PFAS mass distribution. The results of Illumina high-throughput sequencing show that the bacterial diversity decreased upon PFAS exposure. The most predominant phyla retrieved were Proteobacteria (24.7–39.3%), followed by Actinobacteria (4.2–41.1%), Verrucomicrobia (7.9–25.1%), Bacteroidetes (10.2–20.4%), Cyanobacteria (0.4–16.5%), and Firmicutes (1.1–6.4%). The PFAS enrichment caused the changes (p > 0.05) in the structure and composition of bacterial community. This study helps to gain insight into a better understanding of the potential for PFASs distribution in an aquatic plant-based system and the impact on dynamic of microbial community exposed to PFASs.

ACS Style

Dong Qing Zhang; Mo Wang; Qiaochong He; Xiaojun Niu; Yanna Liang. Distribution of perfluoroalkyl substances (PFASs) in aquatic plant-based systems: From soil adsorption and plant uptake to effects on microbial community. Environmental Pollution 2019, 257, 113575 .

AMA Style

Dong Qing Zhang, Mo Wang, Qiaochong He, Xiaojun Niu, Yanna Liang. Distribution of perfluoroalkyl substances (PFASs) in aquatic plant-based systems: From soil adsorption and plant uptake to effects on microbial community. Environmental Pollution. 2019; 257 ():113575.

Chicago/Turabian Style

Dong Qing Zhang; Mo Wang; Qiaochong He; Xiaojun Niu; Yanna Liang. 2019. "Distribution of perfluoroalkyl substances (PFASs) in aquatic plant-based systems: From soil adsorption and plant uptake to effects on microbial community." Environmental Pollution 257, no. : 113575.

Journal article
Published: 31 October 2019 in Sustainability
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The direction and environment of photovoltaics (PVs) may influence their energy output. The practical PV performance under various conditions should be estimated, particularly during initial design stages when PV model types are unknown. Previous studies have focused on a limited number of PV projects, which required the details of many PV models; furthermore, the models can be case sensitive. According to the 18 projects conducted in 7 locations (latitude 29.5–51.25N) around the world, we developed polynomials for the crystalline silicon PV energy output for different accessible input variables. A regression tree effectively evaluated the correlations of the outcomes with the input variables; those of high importance were identified. The coefficient of determination, indicating the percentage of datasets being predictable by the input, was higher than 0.65 for 14 of the 18 projects when the polynomial was developed using the accessible variables such as global horizontal solar radiation. However, individual equations should be derived for horizontal cases, indicating that a universal polynomial for crystalline silicon PVs with a tilt angle in the range 0°–66° can be difficult to develop. The proposed model will contribute to evaluating the performance of PVs with low and medium tilt angles for places of similar climates.

ACS Style

Siwei Lou; Wenqiang Chen; Danny H.W. Li; Mo Wang; Hainan Chen; Isaac Y.F. Lun; Dawei Xia. Tilted Photovoltaic Energy Outputs in Outdoor Environments. Sustainability 2019, 11, 6052 .

AMA Style

Siwei Lou, Wenqiang Chen, Danny H.W. Li, Mo Wang, Hainan Chen, Isaac Y.F. Lun, Dawei Xia. Tilted Photovoltaic Energy Outputs in Outdoor Environments. Sustainability. 2019; 11 (21):6052.

Chicago/Turabian Style

Siwei Lou; Wenqiang Chen; Danny H.W. Li; Mo Wang; Hainan Chen; Isaac Y.F. Lun; Dawei Xia. 2019. "Tilted Photovoltaic Energy Outputs in Outdoor Environments." Sustainability 11, no. 21: 6052.

Journal article
Published: 30 October 2019 in Environmental Technology
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Perfluoroalkyl and polyfluoroalkyl substances (PFASs) have attracted increasing concerns owing to their potential ecotoxicological effects. The sorption of PFASs, i.e. perfluorooctanoic acid (PFOA), perfluorooctane sulfonic acid (PFOS), perfluorobutanoic acid (PFBA) and perfluorobutansulfonic acid (PFBS), by granular activated carbon (GAC) and softwood-derived biochar was studied. The sorption equilibrium of PFASs on GAC was obtained within 3-24 h, while the time required to reach equilibrium for biochar was 12-48 h. PFASs sorption on both GAC and biochar were well represented by the pseudo-second-order model. In the case of sorption isotherms, the PFAS sorption capacity was chain-length dependent with following order: PFOS > PFOA > PFBS > PFBA. GAC exhibited high maximum Langmuir sorption capacity for both PFOS (123.5 µmol g-1) and PFOA (86.2 µmol g-1), which were 43% and 39.6% greater than biochar. The maximum sorption capacity for PFBS on GAC (48.3 µmol g-1) was higher than that for PFBA (31.4 µmol g-1), while the opposite sorption trend was observed for biochar. The sorption mechanisms involved both electrostatic attraction and hydrophobic interaction. The sorption of PFASs increased with the decrease in pH. The competitive sorption of PFASs occurred during the sorption process, resulting in decreased PFASs removal efficiencies. The Fourier transform infrared (FTIR) analyses indicated the presence of a variety of functional groups on the surfaces of adsorbents. Some FTIR responses shifted after sorption, indicating electronic interactions during sorption. All the results indicate that adsorption technology is a feasible method to control the contamination of PFASs, and both GAC and biochar are effective adsorbents for PFASs removal from wastewater.

ACS Style

Dongqing Zhang; Qiaochong He; Mo Wang; Weilan Zhang; Yanna Liang. Sorption of perfluoroalkylated substances (PFASs) onto granular activated carbon and biochar. Environmental Technology 2019, 42, 1798 -1809.

AMA Style

Dongqing Zhang, Qiaochong He, Mo Wang, Weilan Zhang, Yanna Liang. Sorption of perfluoroalkylated substances (PFASs) onto granular activated carbon and biochar. Environmental Technology. 2019; 42 (12):1798-1809.

Chicago/Turabian Style

Dongqing Zhang; Qiaochong He; Mo Wang; Weilan Zhang; Yanna Liang. 2019. "Sorption of perfluoroalkylated substances (PFASs) onto granular activated carbon and biochar." Environmental Technology 42, no. 12: 1798-1809.

Journal article
Published: 13 May 2019 in Water
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An investigation into the effectiveness of bioretention cells (BCs) under potential climatic changes was conducted using representative concentration pathways. A case study of Guangzhou showed changes in peak runoff in climate change scenarios, with obvious growth in RCP8.5 and slight growth in RCP2.6. The performance of BCs on multiple parameters, including reduction of runoff volume, peak runoff, and first flush, were examined in different design storms using a hydrology model (SWMM). The effectiveness of BCs varied non-linearly with scale. Their performance fell by varying amounts in the various scenarios. BCs could provide sufficient effects in response to short-return-period and short-duration storms, but the performance of BCs decreased with heavy storms, especially considering climate change. Hence, BCs cannot replace grey infrastructure but should be integrated with them. The method developed in this study could be useful in the planning and design of low impact development in view of future climate changes.

ACS Style

Mo Wang; Dongqing Zhang; Siwei Lou; Qinghe Hou; Yijie Liu; Yuning Cheng; Jinda Qi; Soon Keat Tan. Assessing Hydrological Effects of Bioretention Cells for Urban Stormwater Runoff in Response to Climatic Changes. Water 2019, 11, 997 .

AMA Style

Mo Wang, Dongqing Zhang, Siwei Lou, Qinghe Hou, Yijie Liu, Yuning Cheng, Jinda Qi, Soon Keat Tan. Assessing Hydrological Effects of Bioretention Cells for Urban Stormwater Runoff in Response to Climatic Changes. Water. 2019; 11 (5):997.

Chicago/Turabian Style

Mo Wang; Dongqing Zhang; Siwei Lou; Qinghe Hou; Yijie Liu; Yuning Cheng; Jinda Qi; Soon Keat Tan. 2019. "Assessing Hydrological Effects of Bioretention Cells for Urban Stormwater Runoff in Response to Climatic Changes." Water 11, no. 5: 997.

Journal article
Published: 13 May 2019 in Journal of Environmental Management
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The effectiveness of porous pavement (PP) and bio-retention cells (BCs) under the influence of potential climate change was investigated based on representative concentration pathways (RCPs). A case study of a test catchment in Guangzhou illustrated changes of peak runoff under various climate scenarios. There were distinct increases in runoff volume and peak discharge in response to RCP8.5 but only marginal increases in response to RCP2.6 (compared with present conditions). The performance of PP and BCs in terms of percentage reduction of runoff volume and peak discharge was examined for 1-, 10-, and 100-year return period and 1- and 6-h-duration storms under various climate scenarios. The effectiveness of PP and BCs varied non-linearly with the extent of PP and BCs adopted. In general, the fluctuation of hydrological performance of PP is greater than that of BCs in RCP2.6 and RCP8.5 (e.g., peak flow reductions range from −60% to 69% and from −22% to 9%, for 5% area of PP and BCs, respectively). And PP is more cost-effective for frequent storms using life cycle costing analysis. We find that PP and BCs could significantly reduce runoff volume and peak discharge in response to rainfall events with short return period, but not for heavy storms with longer return period.

ACS Style

Mo Wang; Dongqing Zhang; Yuning Cheng; Soon Keat Tan. Assessing performance of porous pavements and bioretention cells for stormwater management in response to probable climatic changes. Journal of Environmental Management 2019, 243, 157 -167.

AMA Style

Mo Wang, Dongqing Zhang, Yuning Cheng, Soon Keat Tan. Assessing performance of porous pavements and bioretention cells for stormwater management in response to probable climatic changes. Journal of Environmental Management. 2019; 243 ():157-167.

Chicago/Turabian Style

Mo Wang; Dongqing Zhang; Yuning Cheng; Soon Keat Tan. 2019. "Assessing performance of porous pavements and bioretention cells for stormwater management in response to probable climatic changes." Journal of Environmental Management 243, no. : 157-167.

Journal article
Published: 01 April 2019 in Sustainable Cities and Society
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ACS Style

Jin-Da Qi; Bao-Jie He; Mo Wang; Jin Zhu; Wei-Cong Fu. Do grey infrastructures always elevate urban temperature? No, utilizing grey infrastructures to mitigate urban heat island effects. Sustainable Cities and Society 2019, 46, 101392 .

AMA Style

Jin-Da Qi, Bao-Jie He, Mo Wang, Jin Zhu, Wei-Cong Fu. Do grey infrastructures always elevate urban temperature? No, utilizing grey infrastructures to mitigate urban heat island effects. Sustainable Cities and Society. 2019; 46 ():101392.

Chicago/Turabian Style

Jin-Da Qi; Bao-Jie He; Mo Wang; Jin Zhu; Wei-Cong Fu. 2019. "Do grey infrastructures always elevate urban temperature? No, utilizing grey infrastructures to mitigate urban heat island effects." Sustainable Cities and Society 46, no. : 101392.

Journal article
Published: 13 December 2018 in International Journal of Environmental Research and Public Health
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Air pollution has become a critical issue in the urban areas of southeastern China in recent years. A complete understanding of the tempo-spatial characteristics of air pollution can help the public and governmental bodies manage their lives and work better. In this study, data for six criteria air pollutants (including particulate matter (PM2.5, PM10), carbon monoxide (CO), sulfur dioxide (SO2), nitrogen dioxide (NO2) and ozone (O3)) from 37 sites in nine major cities within Fujian Province, China were collected between January 2015 to December 2016, and analyzed. We analyzed the spatial and temporal variations of these six criteria pollutants, as well as the attainment rates, and identified what were the major pollutants. Our results show that: (1) the two-year mean values of PM2.5 and PM10 exceeded the Chinese National Ambient Air Quality Standard (CAAQS) standard I levels, whereas other air pollutants were below the CAAQS standard I; (2) the six criteria air pollutants show spatial variations (i.e. most air pollutants were higher in the city center areas, followed by suburban areas and exurban areas, except for O3; and the concentrations of PM10, PM2.5, NO2, O3 were higher in coastal cities than in inland cities); (3) seasonal variations and the no attainment rates of air pollutants were found to be higher in cold seasons and lower in warm seasons, except for O3; (4) the most frequently present air pollutant was PM10, with PM2.5 and O3 being the second and third most frequent, respectively; (5) all the air pollutants, except O3, showed positive correlations with each other. These results provide additional information for the effective control of air pollution in the province of Fujian.

ACS Style

Weicong Fu; Ziru Chen; Zhipeng Zhu; Qunyue Liu; Cecil C. Konijnendijk Van Den Bosch; Jinda Qi; Mo Wang; Emily Dang; Jianwen Dong. Spatial and Temporal Variations of Six Criteria Air Pollutants in Fujian Province, China. International Journal of Environmental Research and Public Health 2018, 15, 2846 .

AMA Style

Weicong Fu, Ziru Chen, Zhipeng Zhu, Qunyue Liu, Cecil C. Konijnendijk Van Den Bosch, Jinda Qi, Mo Wang, Emily Dang, Jianwen Dong. Spatial and Temporal Variations of Six Criteria Air Pollutants in Fujian Province, China. International Journal of Environmental Research and Public Health. 2018; 15 (12):2846.

Chicago/Turabian Style

Weicong Fu; Ziru Chen; Zhipeng Zhu; Qunyue Liu; Cecil C. Konijnendijk Van Den Bosch; Jinda Qi; Mo Wang; Emily Dang; Jianwen Dong. 2018. "Spatial and Temporal Variations of Six Criteria Air Pollutants in Fujian Province, China." International Journal of Environmental Research and Public Health 15, no. 12: 2846.

Journal article
Published: 12 November 2018 in Water
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A bioretention system is a low-impact and sustainable treatment facility for treating urban stormwater runoff. To meet or maintain a consistently satisfactory performance, especially in terms of increasing nitrogen removal efficiency, the introduction of a submerged (anoxic) zone (SZ) combined with a module-based carbon source (C) has been recommended. This study investigated the removal of nitrogen (N), phosphorus (P) and heavy metals with a retrofitted bioretention system. A significant (p < 0.05) removal enhancement of N as well as total phosphorus (TP) was observed, in the mesocosms with additions of exogenous carbon as opposed to those without such condition. However, even in the mesocosm with SZ alone (without exogenous C), TP removal showed significant enhancement. With regard to the effects of SZ depth on nutrient removal, the results showed that the removal of both N and P in module with a shallow SZ (200 mm) showed significant enhancement compared to that in module with a deep SZ (300 mm). Removal efficiencies greater than 93% were observed for all three heavy metals tested (Cu, Pb, and Zn) in all mesocosms, even in the bioretention module without an SZ or plants, and it indicated that adsorption by the filtration media itself is probably the most important removal mechanism. Only Cu (but not Pb or Zn) showed significantly enhanced removal in module with an SZ as compared to those without an SZ. Carbon source played a minor role in metal removal as no significant (p > 0.05) improvement was observed in module with C as compared to that without C. Based on these results, the incorporation of SZ with C in stormwater biofilters is recommended.

ACS Style

Mo Wang; Dongqing Zhang; Yong Li; Qinghe Hou; Yuying Yu; Jinda Qi; Weicong Fu; Jianwen Dong; Yuning Cheng. Effect of a Submerged Zone and Carbon Source on Nutrient and Metal Removal for Stormwater by Bioretention Cells. Water 2018, 10, 1629 .

AMA Style

Mo Wang, Dongqing Zhang, Yong Li, Qinghe Hou, Yuying Yu, Jinda Qi, Weicong Fu, Jianwen Dong, Yuning Cheng. Effect of a Submerged Zone and Carbon Source on Nutrient and Metal Removal for Stormwater by Bioretention Cells. Water. 2018; 10 (11):1629.

Chicago/Turabian Style

Mo Wang; Dongqing Zhang; Yong Li; Qinghe Hou; Yuying Yu; Jinda Qi; Weicong Fu; Jianwen Dong; Yuning Cheng. 2018. "Effect of a Submerged Zone and Carbon Source on Nutrient and Metal Removal for Stormwater by Bioretention Cells." Water 10, no. 11: 1629.

Journal article
Published: 12 October 2018 in International Journal of Environmental Research and Public Health
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Atmospheric visibility (AV), one of the most concerning environmental issues, has shown a continuous decline in China’s urban areas, especially in Southeastern China. Existing studies have shown that AV is affected by air pollutants and climate change, which are always caused by human activities that are linked to socioeconomic factors, such as urban size, residents’ activities, industrial activities, and urban greening. However, the contribution of socioeconomic factors to AV is still not well understood, especially from a long-term perspective, which sometimes leads to ineffective policies. In this study, we used the structural equation model (SEM) in order to quantify the contribution of socioeconomic factors on AV change in Xiamen City, China, between 1987–2016. The results showed that the annual average AV of Xiamen between 1987–2016 was 12.00 km, with a change rate of −0.315 km/year. Urban size, industrial activities, and residents’ activities were found to have a negative impact on AV, while the impact of urban greening on the AV was modest. Among all of the indicators, the number of resident’s vehicles, total retail sales of consumer goods, and household electricity consumption were found to have the highest negative direct impact on the AV. The resident population, urban built-up area, and secondary industry gross domestic product (GDP) were the most important indirect impact factors. Based on our results, we evaluated the existing environmental regulations and policies of Xiamen City.

ACS Style

Weicong Fu; Qunyue Liu; Cecil Konijnendijk Van Den Bosch; Ziru Chen; Zhipeng Zhu; Jinda Qi; Mo Wang; Emily Dang; Jianwen Dong. Long-Term Atmospheric Visibility Trends and Their Relations to Socioeconomic Factors in Xiamen City, China. International Journal of Environmental Research and Public Health 2018, 15, 2239 .

AMA Style

Weicong Fu, Qunyue Liu, Cecil Konijnendijk Van Den Bosch, Ziru Chen, Zhipeng Zhu, Jinda Qi, Mo Wang, Emily Dang, Jianwen Dong. Long-Term Atmospheric Visibility Trends and Their Relations to Socioeconomic Factors in Xiamen City, China. International Journal of Environmental Research and Public Health. 2018; 15 (10):2239.

Chicago/Turabian Style

Weicong Fu; Qunyue Liu; Cecil Konijnendijk Van Den Bosch; Ziru Chen; Zhipeng Zhu; Jinda Qi; Mo Wang; Emily Dang; Jianwen Dong. 2018. "Long-Term Atmospheric Visibility Trends and Their Relations to Socioeconomic Factors in Xiamen City, China." International Journal of Environmental Research and Public Health 15, no. 10: 2239.

Journal article
Published: 16 January 2018 in Journal of Cleaner Production
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Future scenarios modeling has been conducted to investigate the effectiveness of urban stormwater infrastructure and to cater to potential future changes. The changes of quantity and quality of urban stormwater, and attributable to climate change and urbanization, were examined and tested in four urban catchments based on future scenarios modeling. Based on our findings, we observed that there were different degrees of performance corresponding to 2-, 10-, and 100-year design storms. However, the general patterns and insights deduced were similar: (1) the peak runoff and water quality appeared to be impacted more significantly by urbanization factors than that due to climate change; (2) the influence from urbanization (increase intensity of land use and population density) was found to be more significant than that from land-use changes alone; (3) catchments with relatively rapid developing rates appeared to produce more serious adverse influence on the stormwater quabntity and quality; and (4) low impact developments as key adaptation practices could be potentially effective in mitigating adverse impacts of future changes on urban stormwater system. The methodology developed in this study could be useful for urban stormwater planning and testing the plan against future change scenarios as a result of urbanization and climate change.

ACS Style

Mo Wang; Dong Qing Zhang; Jin Su; Jian Wen Dong; Soon Keat Tan. Assessing hydrological effects and performance of low impact development practices based on future scenarios modeling. Journal of Cleaner Production 2018, 179, 12 -23.

AMA Style

Mo Wang, Dong Qing Zhang, Jin Su, Jian Wen Dong, Soon Keat Tan. Assessing hydrological effects and performance of low impact development practices based on future scenarios modeling. Journal of Cleaner Production. 2018; 179 ():12-23.

Chicago/Turabian Style

Mo Wang; Dong Qing Zhang; Jin Su; Jian Wen Dong; Soon Keat Tan. 2018. "Assessing hydrological effects and performance of low impact development practices based on future scenarios modeling." Journal of Cleaner Production 179, no. : 12-23.

Conference paper
Published: 04 December 2017 in International Low Impact Development Conference China 2016
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How to optimize the function of stormwater management practices is a key challenge to landscape architecture and stormwater management. This study laid particular emphasis on finding the approach to integrate stormwater management practices into landscape design, and on assessing the investment of stormwater management structural practices. Based on the four-step process of stormwater management in community park, this study compared the content including landscape hydrology, non-structural practices, management objects, and structural practices in Hillside Eco Park, China, and Crescent and Pioneer Halls, Singapore, analyzed the environmental benefits and life cycle costs (LCC) for the structural practices in those two parks. The results showed that (1) four-step process is an operational method to guide the implementation of sustainable stormwater management in community park; (2) both China and Singapore are facing the problem of making a balance between vibrant living landscape and storms; and (3) the evaluation of environment benefit and LCC is an effective way to measure the economic costs of structural practices for stormwater management, and it should be used in the planning phase for optimal design for stormwater management in community park. The methodology used in this study could be useful as a reference to consider how stormwater management can combine with landscape design in the community parks.

ACS Style

Mo Wang; Dong Qing Zhang; Ya Wang; Jin Su; Jian Wen Dong; Soon Keat Tan. Comparison of Stormwater Management in the Community Park between China and Singapore: A Case Study of Hillside Eco Park and Crescent and Pioneer Hall. International Low Impact Development Conference China 2016 2017, 1 .

AMA Style

Mo Wang, Dong Qing Zhang, Ya Wang, Jin Su, Jian Wen Dong, Soon Keat Tan. Comparison of Stormwater Management in the Community Park between China and Singapore: A Case Study of Hillside Eco Park and Crescent and Pioneer Hall. International Low Impact Development Conference China 2016. 2017; ():1.

Chicago/Turabian Style

Mo Wang; Dong Qing Zhang; Ya Wang; Jin Su; Jian Wen Dong; Soon Keat Tan. 2017. "Comparison of Stormwater Management in the Community Park between China and Singapore: A Case Study of Hillside Eco Park and Crescent and Pioneer Hall." International Low Impact Development Conference China 2016 , no. : 1.

Journal article
Published: 24 November 2017 in Sustainability
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This paper presents Synergetic Development Assessment (SDA) as a methodology to evaluate the environmental, economic, and social performance of an urban river system landscape from the perspective of sustainability. SDA is based on synergetics and its “order parameters” theory, proposed as a science to study the self-organization of complex systems. A case study of river system landscapes in China was carried out by, first, simplifying the composite system into three subsystems: environmental, economic, and social; then, going on to construct a hierarchical structure to explore the order parameters as the evaluation index. The Analytic Hierarchy Process was used to get the weight of the evaluation index to complete the assessment index system. At the same time, a Sequential Synergy Degree Model was built to accomplish the SDA. We find that from 2005 to 2015, the order degree of the environmental subsystem developed slowly, with fluctuations, and that river pattern is the key factor. Meanwhile, the order degree of the economic subsystem fluctuated widely, which significantly depended on the changing value of water resources, and the order degree of social subsystem improved continuously, with social culture lagging far behind. As a whole, the synergy degree of the composite system developed orderly at a corresponding low level, which was in low synergy from 2005 to 2009 and then in general synergy up to 2015.

ACS Style

Jingya Qiao; Mo Wang; Dongqing Zhang; Chenyang Ding; Jingjing Wang; Dawei Xu. Synergetic Development Assessment of Urban River System Landscapes. Sustainability 2017, 9, 2145 .

AMA Style

Jingya Qiao, Mo Wang, Dongqing Zhang, Chenyang Ding, Jingjing Wang, Dawei Xu. Synergetic Development Assessment of Urban River System Landscapes. Sustainability. 2017; 9 (12):2145.

Chicago/Turabian Style

Jingya Qiao; Mo Wang; Dongqing Zhang; Chenyang Ding; Jingjing Wang; Dawei Xu. 2017. "Synergetic Development Assessment of Urban River System Landscapes." Sustainability 9, no. 12: 2145.

Journal article
Published: 23 November 2017 in Sustainability
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This paper presents Synergetic Development Assessment (SDA) as a methodology to evaluate the environmental, economic, and social performance of an urban river system landscape from the perspective of sustainability. SDA is based on synergetics and its “order parameters” theory, proposed as a science to study the self-organization of complex systems. A case study of river system landscapes in China was carried out by, first, simplifying the composite system into three subsystems: environmental, economic, and social; then, going on to construct a hierarchical structure to explore the order parameters as the evaluation index. The Analytic Hierarchy Process was used to get the weight of the evaluation index to complete the assessment index system. At the same time, a Sequential Synergy Degree Model was built to accomplish the SDA. We find that from 2005 to 2015, the order degree of the environmental subsystem developed slowly, with fluctuations, and that river pattern is the key factor. Meanwhile, the order degree of the economic subsystem fluctuated widely, which significantly depended on the changing value of water resources, and the order degree of social subsystem improved continuously, with social culture lagging far behind. As a whole, the synergy degree of the composite system developed orderly at a corresponding low level, which was in low synergy from 2005 to 2009 and then in general synergy up to 2015.

ACS Style

Jingya Qiao; Mo Wang; Dongqing Zhang; Chenyang Ding; Jingjing Wang; Dawei Xu. Synergetic Development Assessment of Urban River System Landscapes. Sustainability 2017, 9, 2145 .

AMA Style

Jingya Qiao, Mo Wang, Dongqing Zhang, Chenyang Ding, Jingjing Wang, Dawei Xu. Synergetic Development Assessment of Urban River System Landscapes. Sustainability. 2017; 9 (12):2145.

Chicago/Turabian Style

Jingya Qiao; Mo Wang; Dongqing Zhang; Chenyang Ding; Jingjing Wang; Dawei Xu. 2017. "Synergetic Development Assessment of Urban River System Landscapes." Sustainability 9, no. 12: 2145.

Article
Published: 02 November 2017 in CLEAN – Soil, Air, Water
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The performance of a stormwater wetland consisting of a retention pond followed by a horizontal subsurface flow (SSF)-constructed wetland is evaluated during 11 stormwater events. Samples collected from the inlet and outlet of the wetland are analyzed for total suspended solids (TSS), chemical oxygen demand (COD), total nitrogen (TN), ammonium (NH4+-N), nitrate (NO3−-N), PO43−, total phosphorus (TP), and trace metals. Despite the high variability in inflow concentrations, high removal efficacies for TSS (84.3%) and COD (79.2%) are observed. The overall nitrogen removal is satisfactory with a removal efficiency (RE) of 53.5% for TN, 56.5% for NH4+-N, and 76.5% for NO3−-N. Lower inflow concentrations limit the TP removal (29.5%) and can allow previously sorbed phosphorus to be released from sediments into the water column. In addition, retention pond is limited in removing dissolved and fine fractions. Lower concentrations of heavy metals are observed compared to influent, and the average RE is 67.2% for Zn, 73.2% for Cu, 41.7% for Cr, 7.1% for Cd, 44.1% for Ni, and 60.6% for Pb, respectively. Relatively high levels of Zn in the roots of Phragmites australis are observed, followed by Cu, Ni, and Cr. Mean concentrations of TSS, TN, and TP are all moderately correlated to inflow intensity during stormwater events in contrast to dissolved nutrients. Flow intensity and effluent concentrations of TSS, TN, TP, and PO43− are also significantly positively correlated.

ACS Style

Yi Cheng Li; Dong Qing Zhang; Mo Wang. Performance Evaluation of a Full-Scale Constructed Wetland for Treating Stormwater Runoff. CLEAN – Soil, Air, Water 2017, 45, 1 .

AMA Style

Yi Cheng Li, Dong Qing Zhang, Mo Wang. Performance Evaluation of a Full-Scale Constructed Wetland for Treating Stormwater Runoff. CLEAN – Soil, Air, Water. 2017; 45 (11):1.

Chicago/Turabian Style

Yi Cheng Li; Dong Qing Zhang; Mo Wang. 2017. "Performance Evaluation of a Full-Scale Constructed Wetland for Treating Stormwater Runoff." CLEAN – Soil, Air, Water 45, no. 11: 1.

Article
Published: 14 September 2017 in CLEAN – Soil, Air, Water
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Future scenarios modeling is used to investigate the effectiveness of the urban stormwater infrastructure and its response to potential future changes. The changes of urban stormwater, both in-flow quantity and water quality, in response to climate change and urbanization are examined and tested in two highly developed urban catchments using the US Environmental Protection Agency's Storm Water Management Model. Similar responses are observed in the two catchments, despite their differences in size and land use. Flow quantity and water quality appears to be more sensitive to urbanization factors than to climatic change. With respect to factors attributable to urbanization, urban intensification (land use plus population density) has more of an effect than land-use changes alone. Low-impact development, as a key adaptation measure, could be effective in mitigating the adverse impacts of future changes on urban stormwater. The methodology developed in this study may be useful for urban stormwater planning and testing such plans against future urbanization and climate change scenarios.

ACS Style

Mo Wang; Dong Q. Zhang; Jin Su; Antoine Trzcinski; Jian W. Dong; Soon Keat Tan. Future Scenarios Modeling of Urban Stormwater Management Response to Impacts of Climate Change and Urbanization. CLEAN – Soil, Air, Water 2017, 45, 1 .

AMA Style

Mo Wang, Dong Q. Zhang, Jin Su, Antoine Trzcinski, Jian W. Dong, Soon Keat Tan. Future Scenarios Modeling of Urban Stormwater Management Response to Impacts of Climate Change and Urbanization. CLEAN – Soil, Air, Water. 2017; 45 (10):1.

Chicago/Turabian Style

Mo Wang; Dong Q. Zhang; Jin Su; Antoine Trzcinski; Jian W. Dong; Soon Keat Tan. 2017. "Future Scenarios Modeling of Urban Stormwater Management Response to Impacts of Climate Change and Urbanization." CLEAN – Soil, Air, Water 45, no. 10: 1.

Review
Published: 07 August 2017 in Hydrobiologia
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With the unique advantages of cost-effectiveness and low energy consumption, constructed wetlands (CWs) are commonly used for treatment of secondary municipal wastewaters. Over the last decades, CWs have gained increased popularity for treating agricultural runoff and agro-industrial wastewater. This review highlights the practice, application, and research on wetland technology, placing them in the overall context of the need for reliable and sustainable solutions to managing agricultural runoff and agro-industrial wastewater. A critical assessment of the performance and effectiveness of wetland systems for removing various contaminants of importance to agriculture is presented. The design parameters and operational conditions affecting the efficiency of contaminant removal in CWs receiving agricultural runoff and agro-industrial wastewater are also discussed. The role of proper pretreatment, artificial aeration, effluent recirculation, in-series design, and microbial dynamics on the enhancement of treatment is provided. Challenges and perspectives for future research on agricultural treatment wetlands are also addressed.

ACS Style

Mo Wang; Dongqing Zhang; Jianwen Dong; Soon Keat Tan. Application of constructed wetlands for treating agricultural runoff and agro-industrial wastewater: a review. Hydrobiologia 2017, 805, 1 -31.

AMA Style

Mo Wang, Dongqing Zhang, Jianwen Dong, Soon Keat Tan. Application of constructed wetlands for treating agricultural runoff and agro-industrial wastewater: a review. Hydrobiologia. 2017; 805 (1):1-31.

Chicago/Turabian Style

Mo Wang; Dongqing Zhang; Jianwen Dong; Soon Keat Tan. 2017. "Application of constructed wetlands for treating agricultural runoff and agro-industrial wastewater: a review." Hydrobiologia 805, no. 1: 1-31.

Review
Published: 10 February 2017 in Journal of Environmental Sciences
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Constructed wetlands (CWs) have been successfully used for treating various wastewaters for decades and have been identified as a sustainable wastewater management option worldwide. However, the application of CW for wastewater treatment in frigid climate presents special challenges. Wetland treatment of wastewater relies largely on biological processes, and reliable treatment is often a function of climate conditions. To date, the rate of adoption of wetland technology for wastewater treatment in cold regions has been slow and there are relatively few published reports on CW applications in cold climate. This paper therefore highlights the practice and applications of treatment wetlands in cold climate. A comprehensive review of the effectiveness of contaminant removal in different wetland systems including: (1) free water surface (FWS) CWs; (2) subsurface flow (SSF) CWs; and (3) hybrid wetland systems, is presented. The emphasis of this review is also placed on the influence of cold weather conditions on the removal efficacies of different contaminants. The strategies of wetland design and operation for performance intensification, such as the presence of plant, operational mode, effluent recirculation, artificial aeration and in-series design, which are crucial to achieve the sustainable treatment performance in cold climate, are also discussed. This study is conducive to further research for the understanding of CW design and treatment performance in cold climate.

ACS Style

Mo Wang; Dong Qing Zhang; Jian Wen Dong; Soon Keat Tan. Constructed wetlands for wastewater treatment in cold climate — A review. Journal of Environmental Sciences 2017, 57, 293 -311.

AMA Style

Mo Wang, Dong Qing Zhang, Jian Wen Dong, Soon Keat Tan. Constructed wetlands for wastewater treatment in cold climate — A review. Journal of Environmental Sciences. 2017; 57 ():293-311.

Chicago/Turabian Style

Mo Wang; Dong Qing Zhang; Jian Wen Dong; Soon Keat Tan. 2017. "Constructed wetlands for wastewater treatment in cold climate — A review." Journal of Environmental Sciences 57, no. : 293-311.