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1

Respiratory system symptoms in the neighborhood of a wastewater treatment plant

100%
Jaremkow A., Noga L., Pawlas K.
Polish Journal of Environmental Studies
|
2018
|
tom 27
|
nr 1
The aim of our study was to assess the incidence of respiratory system disorders among residents in the neighborhood of a wastewater treatment plant compared to the population living outside the impact area. We conducted a questionnaire survey on two populations: one from the vicinity of the wastewater treatment plant (586 people) and another from a village located far away from the plant (502 people). Studied populations were also divided according to place of residence and distance from the plant: zones A, B, C. Survey questions concerned the respiratory system symptoms and housing conditions. Respondents from the exposed group reported the following symptoms more often than the control group: frequent colds, recurrent respiratory tract infections, throat irritation, dyspnoea, recurrent rhinitis, and nasal irritation/ burning sensation. Among the risk factors for respiratory disorders, significant were: living in blocks of flats (OR = 1.78; CI 1.13-2.81), air pollution by odours (OR = 1.64; CI 1.04-2.56), period of residence (OR = 1.02; CI 1.00-1.03) and age of respondents (OR = 0.98; CI 0.97-0.98), while the ownership of pets had a protective effect (OR<1). Reported symptoms were also associated with air pollution by staphylococci (OR~5). The obtained results show that proximity to a wastewater treatment plant deteriorates the health of nearby residents.
2

Impact of a sewage treatment plant on health of local residents: gastrointestinal system symptoms

76%
Jaremkow A., Szalata L., Kolwzan B., Sowka I., Zwozdziak J., Pawlak K.
Polish Journal of Environmental Studies
|
2017
|
tom 26
|
nr 1
The aim of this study was to evaluate the impact of a sewage treatment plant on the occurrence of gastrointestinal symptoms among the local residents. A survey was conducted on two populations: one from the vicinity of the sewage treatment plant (the exposed group: 586 people), and the other from outside the impact area of the plant (the control group: 502 people). The research area was divided into distance zones from the plant (A, B, C). The questionnaire included questions about the occurrence of gastrointestinal disorders. Compared with the control group, the local residents reported more often: nausea, vomiting, and frequent diarrhea. Occurrences of gastrointestinal disorders were associated with air pollution by pathogenic staphylococci (OR~7) and odours (OR = 7.34; Cl 3.43-15.72) emitted by the plant, and also living in zone A vs. zone C (OR = 3.47; CI 1.00-12.07), use of a gas cooker in houses (OR = 2.21; CI 1.03-4.70), and the age of the respondents (0.98; CI 0.96-1.00). The study showed that as distance from the plant increased, the incidence of reported gastrointestinal disorders declined. Living in the vicinity of a sewage treatment plant favours the occurrence of gastrointestinal symptoms among the local residents.
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