Multi-Year Monitoring of the Tick–Pathogen System in Natural Foci of Tick-Borne Encephalitis in the Suburbs of Irkutsk

Мельникова, О. В.; Вершинин, Е. А.; Verzhutskaya, Yu. A.; Korzun, V. M.; Adelshin, R. V.; Trushina, Yu. N.; Андаев, Е. И.

doi:10.1134/s0013873821090232

Cited by 1 publication

(1 citation statement)

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“…On the other hand, there was a long-term input of p,p -DDT into the atmosphere at the suburban station. Taking into account the widespread practice of DDT application against insect vectors of infectious diseases in the past [88,113], the epidemic zone of tick-borne encephalitis [114], and presence of summer recreation areas for children nearby, it may be suggested that the application of DDT in the past was a likely source in the suburban station area that resulted in long-term evaporation of DDT from soil into air. At the same time, we cannot exclude the unofficial application of DDT by local residents or the transport of dung and humus potentially contaminated with DDT from other agricultural areas as an additional source of DDT in the suburban station area.…”

Section: Seasonal Variation In Airmentioning

confidence: 99%

Air Monitoring of Polychlorinated Biphenyls and Organochlorine Pesticides in Eastern Siberia: Levels, Temporal Trends, and Risk Assessment

Mamontova

Mamontov

2022

Atmosphere

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In this study, we evaluate the long-term and seasonal variations of polychlorinated biphenyls (PCBs), hexachlorobenzene (HCB), α-, γ-hexachlorocyclohexanes (HCH), and p,p’-dichlorodiphenyltrichloroethane (p,p’-DDT) and its metabolites through a passive air sampling method at two (urban and suburban) stations in Eastern Siberia, Russia, in 2011–2017. The median levels of HCB, ∑HCHs, ∑DDTs, ∑PCB39, and ∑PCB6 in the air were 116, 84, 55, 128, and 41 pg/m3 and 83, 21, 11, 52, and 16 pg/m3 at the urban and suburban stations, respectively. PCB and HCH levels in the air of Irkutsk decreased considerably in the 2000s, in comparison to the late 1980s and early 1990s, while an increasing trend was observed for HCB during the 2010s. The seasonality of air concentrations (with summer concentrations higher than winter concentrations) was well exhibited by PCB, HCH, and DDT, but not HCB. Significant correlations were observed between approximately all studied persistent organic pollutants and the average air temperature, quantity of precipitation, and frequency of the prevailing wind direction during the sampling period. The daily doses of PCBs, DDTs, HCHs, and HCB under human exposure by inhalation amounted to 38, 21, 27, and 35 and 17, 6, 7, and 27 pg/kg body weight per day in urban and suburban areas, respectively.

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Section: Seasonal Variation In Airmentioning

confidence: 99%