Proper habits formed since childhood represent the ideal head start to help keep the environment clean, although this is not a standalone vital factor for a person to dislike littering behavior. The data used in this study were derived from the compilation of primary data. This paper concerns littering behavior of children and presents a survey conducted with 2349 individuals who completed a survey with relevant items and demographic information. The respondents were sampled with a purposive random sampling survey method. Then, by means of logistic regression, we found that low-income households need to be supported by disposal facilities and formal education, while high-income households need to be supported by awareness-raising on the issue. Moreover, it was found that in terms of environmental protection during the pre-school period, self-initiative and parental assistance were not sufficient to drive individual responses on littering behavior. However, there is the need to analyze, in further research, religious education and other extrinsic and intrinsic motivations about environmental care and waste management for children.

Since December 2019, the COVID-19 pandemic has rapidly emerged on a global scale. Many factors have influenced the spread of COVID-19. This research studies the sociodemographic and environmental health risk factors associated with COVID-19. The study used an ecological study design with subdistricts as its unit of analysis. The total population was 44 subdistricts. Data analysis used correlation and linear regression tests. The study results showed that the average COVID-19 incident rate in Jakarta is 99.8 per 10,000 population. Risk factors for the spread of COVID-19 were associated with population's high level of education (B = 3.094, p value<0.001), population density (B = 0.275, p value = 0.029), and slum area (B = 0.404, p value<0.001). The main risk factor for the spread of COVID-19 in Jakarta is high level of education, which can reflect a higher economic status to the population and a tendency to be more mobile. The government needs to enforce a mobility restriction to lessen the spread of COVID-19.

Vaccine accessibility and availability has been shown to be one of the key factors to ensure rapid responses to the COVID-19 pandemic. Increased vaccine coverage is, however, dependent on vaccine supply and transportation, in particular ensuring that road networks have as minimal disruption as possible. In Indonesia, the most common and imminent threats affecting transport flows are due to frequent disasters such as floods, landslides, and high rainfall. This research is novel because it fills in the gap between health and disaster studies in COVID-19-related studies published since 2021. This study presents an analysis of susceptibility of various hydro-meteorological disasters on the trans-provincial roads that span over 856.014 km and cover an area of 38,744.23 km² over 13 districts in South Kalimantan Province, Indonesia. The floods that occurred in January and November 2021 inundated an area of around 4000 km² (10 percent of the total study area) that spans along 13 sub-provincial/district areas. Data collected are analyzed using the geographical information system (GIS) to quantify and classify the impacts in the 13 districts, utilizing different indicators such as topography, road conditions and characteristics, amount of rainfall, and types of disasters that occurred (floods and landslides). The results show that the trans-provincial road, which is also the only road available for transporting vaccines in the South Kalimantan Province, was highly susceptible to various hydro-meteorological disasters. Around 20 percent of the total road length was disrupted by the floods, close to 4% of the road section passes through mountainous areas that make it susceptible to landslides, and about 13% to 23% of the road section is vulnerable to slip risks due to the extreme rainfall. The results presented here demand an overarching solution involving multiple stakeholders from public works and local disaster management offices in terms of disaster mitigation and preparedness strategies, and environmental protection in terms of disaster risk reduction implementation. This research contributes to the health sector particularly through future preparedness to pandemics and wider vaccine distribution and coverage through the identification and mapping of sections of roads impacted by multiple disasters.

In 2019, well water was the primary source of clean water for 76.18% of Indonesian households. In the same year, based on an assessment of water quality in subdistricts in Indonesia, Jakarta had the third-lowest water quality index. This research aimed to analyze the impact of topographic, sociodemographic, and flood-related factors on well water quality in Jakarta from 2017 to 2019. This study employed an ecological design and used data obtained from various government agencies and has been published on an official website. Water quality data from wells in 261 subdistricts were analyzed using correlation and spatial analyses in this study. More than 83% of water well quality in Jakarta failed to meet the standard within the period of the study. The well water quality was the poorest in North Jakarta with the lowest elevation above sea level. The factors significantly associated with well water quality were low elevation (p ≤ 0.001), high population density (p = 0.015), and a low education level (p = 0.028). Local governments and private sectors should expand the piped water network and educate the public on well water quality and how to prevent waterborne diseases.

Hazardous waste may be an environmental and public health threat if not managed properly and may contribute to a regional multi-hazard when other natural disasters also exist. Hazardous and toxic waste may cause industrial disaster if its risks are not well identified and mitigated. This study aims to model the city/district-based risk assessment for each type of hazardous waste in Central Java Province for anticipating hazardous waste disasters and necessary responses. The concept of disaster is used as the method in this study, consisting of hazard, vulnerability, and capacity. The results showed that the generation of hazardous waste in Central Java Province was very large, amounting to 2,886,974.024 tons in 2021. The hazardous waste produced was sourced from 1233 types of businesses/activities in Central Java Province, with 4042 types of hazardous waste. The healthcare sector is identified as the sector that produces the most hazardous waste. Overall, the risk levels of the majority of hazardous waste types fall into the low category.