In the present study, the authors assessed the odour quality of the air in the vicinity of a landfill site using a case study of a waste management plant that processes non-hazardous and inert waste as an example. An analysis of the impact of the facility under study on the odour quality of the air was performed based on a mathematical modelling system used to, among other things, assess the impact of investments in air quality both in Poland and worldwide. The most important element of the system is the puff dispersion model CALPUFF. In conclusion, the analysis of the plant’s odour impact clearly indicates a significant impact on the air quality in the studied area. The range of the impact may even reach up to 1.5 km; in the nearest locality, the odour perceptibility threshold may be exceeded for more than 3% of the hours in a year. However, taking into account the fact that the landfill is located within an agricultural area, the incidental odour impact in this area may also be associated with periods of intensive fertilization and a roadside ditch collecting municipal sewage from roadside households.

We studied climate change dynamics in southwestern Poland. The authors based the assessment of dynamics on the results of flood risk analyses. 30-day flow maxima were selected for three 10-year periods based on hydrological data on daily flows from 1986 to 2015 from the hydrological station on the Oder River in the town of Malczyce. By utilizing the selected maxima as well as selected maximum value distributions, probabilistic models of extreme flows were constructed for the three studied periods – each divided into six-month periods of “summer” and “winter.” The estimated models were used to calculate measurements of flood risks in the analyzed periods. We analyzed the studied area on the basis of the results the dynamics of flood risks.

The aim of the presented work was to determine the emission of malodorous pollutants into the air, as well as the emission of bioaerosol from potential emission sources of the selected Waste Management Plant / Municipal Waste Mechanical and Biological Processing Plant, and to determine the immission of pollutants and bioaerosol at sites located on the premises of the plant and in its vicinity. It should be clearly emphasized that this issue has been a significant challenge in recent years throughout the country and often raises social concern.The structure of the publication includes, in addition to the theoretical part describing the course of processes at the selected Plant, a practical part describing the course of research into the potential odour and microbiological impact together with a summary of their results, as well as indicating solutions for reducing the odour nuisance of the discussed Plant.

Background/Objectives: Colorectal cancer (CRC) patients undergoing chemotherapy often experience anemia, oxidative stress, and immune suppression, significantly impacting their quality of life and treatment outcomes. Normobaric oxygen (NBO) therapy, which delivers oxygen at atmospheric pressure with an elevated oxygen concentration, has shown the potential to enhance erythropoiesis, reduce oxidative stress, and modulate immune function. However, its efficacy in CRC patients remains underexplored. This study aims to evaluate the effects of NBO exposures on (1) supporting erythropoiesis by measuring erythropoietin (EPO) levels and hypoxia-inducible factor 1-alpha (HIF-1α), (2) reducing oxidative stress and improving stress and emotional well-being, and (3) modulating immune function by assessing cytokine profiles. Secondary objectives include assessing the impact of NBO on patient-reported outcome measures (PROMs) such as stress, anxiety, depression, and quality of life. Methods: This is a prospective, randomized, double-blind, placebo-controlled clinical trial. A total of 254 CRC patients undergoing chemotherapy will be randomized 1:1 to receive either active NBO therapy (n = 127, study group) or placebo NBO therapy (n = 127, control group). The intervention will consist of 10 NBO sessions over five weeks. Primary outcomes include biomarkers of erythropoiesis, oxidative stress, and immune response. Secondary outcomes assess quality of life and psychological well-being. Data will be collected at baseline, mid-intervention, post-intervention, and during two follow-up visits (3 and 6 months post-intervention). Results: The study hypothesizes that NBO therapy will improve erythropoiesis, reduce oxidative stress, and enhance immune function in CRC patients, leading to improved quality of life and clinical outcomes. Conclusions: Findings from this trial may establish NBO as a novel supportive therapy for CRC patients undergoing chemotherapy.