نتایج جستجو برای: hchs

تعداد نتایج: 316  

Journal: :Environmental Science & Technology 2021

As a result of its unique location, Turkey receives air masses from Europe, Russia, Middle East, and Africa, making it an important place in terms long-range atmospheric transport (LRT) contaminants. Atmospheric levels 22 organochlorine pesticides (OCPs), 45 polychlorinated biphenyls (PCBs), 14 polybrominated diphenyl ethers (PBDEs) were measured two metropolitan cities, Istanbul Izmir, on week...

Journal: :The journal of cetacean research and management 2023

Factors related to mortality and disease in Indo-Pacific humpback dolphins (Sousa chinensis) from Hong Kong waters were investigated by detailed examination of dolphin specimens found stranded 1995-2004. In total, 86 necropsied, but many these too badly decomposed provide much information. Skin blubber biopsies also collected six identified living individuals concentrations organochlorines (DDT...

Journal: :Journal of environmental monitoring : JEM 2012
Syed Ali-Musstjab-Akber-Shah Eqani Riffat Naseem Malik Athanasios Katsoyiannis Gan Zhang Paromita Chakraborty Ashiq Mohammad Kevin C Jones

Concentrations in surface waters (including particulate phase) of the River Chenab ranged from 27-1100 ng L(-1) and 25-1200 ng L(-1) for OCPs and 7.7-110 ng L(-1) and 13-99 ng L(-1) for PCBs during summer and winter, respectively from 2007-2009. DDTs exhibited the highest concentration, followed by HCHs > chlordane > ∑(24)PCBs > ∑other OCPs. Different indicative ratios for organochlorines sugge...

2014
Barbara Maliszewska-Kordybach Bożena Smreczak Agnieszka Klimkowicz-Pawlas

The aim of our study was to evaluate the content of organochlorine pesticides (DDTs and HCHs) in the upper layer of arable soils in Poland. 214 soil samples were analyzed for the content of three HCH congeners (α-HCH, β-HCH, and γ-HCH) and three DDT compounds (pp’DDT, pp’DDE, and pp’DDD). The median soil concentration of Σ3DDT was 24.39 μg·kg, while for Σ3HCH it was 2.85 μg·kg with the highest ...

2016
Xiaoping Wang Jiao Ren Ping Gong Chuanfei Wang Yonggang Xue Tandong Yao Rainer Lohmann

The Tibetan Plateau (TP) has been contaminated by persistent organic pollutants (POPs), including legacy organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) through atmospheric transport. The exact source regions, transport pathways and time trends of POPs to the TP are not well understood. Here polystyrene– divinylbenzene copolymer resin (XAD)-based passive air samplers (PASs...

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