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Journals / Atmospheric Pollution Research / 2020 / Cilt: 11 - Sayı: 12

Seasonal variations of organochlorine pesticides (OCPs) in air samplesduring day and night periods in Bursa, Turkey

Gizem EKER ŞANLI
Yücel TAŞDEMİR
Pages
2142–2153
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Inhalation carcinogenic risks ofOCPs were calculated and they indicated low cancer risk.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The goal of the present work was to investigate the seasonal variations of organochlorine pesticide (OCP) levelsin Bursa, Turkey.
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Key Findings & Data:Atmospheric OCPs in theparticulate and gas phases were measured separately during night and day time periods.
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Conclusion & Impact:Inhalation carcinogenic risks ofOCPs were calculated and they indicated low cancer risk.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Özet

The goal of the present work was to investigate the seasonal variations of organochlorine pesticide (OCP) levelsin Bursa, Turkey. The sampling site was a campus and considered as a semi-rural site. Atmospheric OCPs in theparticulate and gas phases were measured separately during night and day time periods. The average of the totalconcentrations was determined as 599 ± 194 pg/m3and on average 65% of the total OCP concentration was inthe gas phase. Measured OCP level were comparatively greater in the warmer months of June, July, and August.The temperature dependence of gas-phase atmospheric concentrations of OCPs was examined using the Clausius-Clapeyron approach. The temperature effect was statistically significant (p < 0.05) on the Alpha, Gamma- andDelta-HCH, and Methoxychlor concentrations for night samples, yet it was not statistically significant for the daysamples. The maximum annual average gas phase OCP concentration was measured for Beta-HCH species as176 pg/m3. The maximum value was 67 pg/m3in the particle phase and it belonged to Beta-Endosulfan. Thepartitioning of OCPs between particle and gas phases was studied. They were compared to the PoL(supercooledvapor pressure) and KOA (octanol/air partition coefficient) models. OCP concentrations measured during theday and night-time periods were found to be close to each other. The absence of a significant difference in night-day concentrations has shown that the impact of local sources were similar. Inhalation carcinogenic risks ofOCPs were calculated and they indicated low cancer risk.

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Cite This Article

ŞANLI, G. E., TAŞDEMİR, Y. (2020). Seasonal variations of organochlorine pesticides (OCPs) in air samplesduring day and night periods in Bursa, Turkey. Atmospheric Pollution Research, Cilt: 11 - Sayı: 12, 2142–2153. https://ajindex.com/articles/351241

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