Pollution levels of DDTs and their spatiotemporal trend from sediment records in the Southern Yellow Sea, China

Zhao, Zongshan; Jia, Jiaojiao; Wang, Jiaokai; Liu, Aifeng; Lan, Jing; Zhang, Hailong; Zhao, Meixun

doi:10.1016/j.marpolbul.2017.12.026

Cited by 13 publications

(1 citation statement)

References 41 publications

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“…Organochlorine pesticides (OCPs), known for their features of degradation resistance, bioaccumulation, and biotoxicity (Jones and de Voogt, 1999;Tolosa et al, 1995), were extensively used in agriculture to increase the grain output and in public places to control malaria all over the world (Wong et al, 2005). Thirty years have passed since the ban of technical dichlorodiphenyltrichloroethanes (DDTs) and hexachlorocyclohexanes (HCHs) (two representational OCPs) for agriculture application in China, but studies in recent 5 years revealed that their concentrations in atmosphere (Yu et al, 2019), water system (Wang et al, 2018), soil (Li et al, 2018;Yuan et al, 2017), biota (Zhou et al, 2014a), and sediment (Zhao et al, 2018) still remained at a high level. Various evidences indicate that there still exist fresh inputs of OCPs in China.…”

Section: Introductionmentioning

confidence: 99%

A national-scale characterization of organochlorine pesticides (OCPs) in intertidal sediment of China: Occurrence, fate and influential factors

Luan

Guo

et al. 2020

Environmental Pollution

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Organochlorine pesticides (OCPs) have been restricted for application for about 30 years in China. Intertidal zone is a sink for anthropogenic pollutants, and to better understand the current pollution status of OCPs in China, 324 surface sediment samples collected from 14 typical intertidal zones of China were analyzed for 22 OCPs. The total concentrations of OCPs ranged from 0.051 to 4141.711 ng/g, with DDTs and HCHs being the dominant components. Seasonal variations were not significant for most intertidal zones (p > 0.05), while significant spatial variations (p < 0.05) were found among 14 intertidal zones, with the highest OCPs concentrations detected in Jiulong Jiang (JLJ). The OCPs concentrations in intertidal sediments would rarely to frequently cause adverse biological effects and DDTs were the major threat. Apart from the historical usage of technical DDT and lindane, current usage of technical DDT and HCH were also implied, especially for intertidal zones such as Beidaihe (BDH) and Yingluo Wan (YLW). PCA analysis indicated that compounds within the same type of OCPs were from similar source, while different types of OCPs were generally from different sources and not used together. Our results further indicated that OCPs together with organic particles entered into the intertidal zones mainly through river input.

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Section: Introductionmentioning

confidence: 99%

A national-scale characterization of organochlorine pesticides (OCPs) in intertidal sediment of China: Occurrence, fate and influential factors

Luan

Guo

et al. 2020

Environmental Pollution

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A Nondestructive Method to Identify POP Contamination Sources in Omnivorous Seabirds

Michielsen

Shamoun‐Baranes

Parsons

et al. 2018

Reviews of Environmental Contamination and Toxicology Volume 246

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Persistent organic pollutants (POPs) are present in almost all environments due to their high bioaccumulation potential. Especially species that adapted to human activities, like gulls, might be exposed to harmful concentrations of these chemicals. The nature and degree of the exposure to POPs greatly vary between individual gulls, due to their diverse foraging behavior and specialization in certain foraging tactics. Therefore, in order clarify the effect of POP-contaminated areas on gull populations, it is important to identify the sources of POP contamination in individual gulls. Conventional sampling methods applied when studying POP contamination are destructive and ethically undesired. The aim of this literature review was to evaluate the potential of using feathers as a nondestructive method to determine sources of POP contamination in individual gulls. The reviewed data showed that high concentrations of PCBs and PBDEs in feathers together with a large proportion of less bioaccumulative congeners may indicate that the contamination originates from landfills. Low PCB and PBDE concentrations in feathers and a large proportion of more bioaccumulative congeners could indicate that the contamination originates from marine prey. We propose a nondestructive approach to identify the source of contamination in individual gulls based on individual contamination levels and PCB and PBDE congener profiles in feathers. Despite some uncertainties that might be reduced by future research, we conclude that especially when integrated with other methods like GPS tracking and the analysis of stable isotopic signatures, identifying the source of POP contamination based on congener profiles in feathers could become a powerful nondestructive method.

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Evaluating the fate and potential health risks of organochlorine pesticides and triclosan in soil, sediment, and water from Asa Dam River, Ilorin Kwara State, Nigeria

Adeyinka

Bakare

2022

Environ Monit Assess

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Pollution levels of DDTs and their spatiotemporal trend from sediment records in the Southern Yellow Sea, China

Cited by 13 publications

References 41 publications

A national-scale characterization of organochlorine pesticides (OCPs) in intertidal sediment of China: Occurrence, fate and influential factors

A national-scale characterization of organochlorine pesticides (OCPs) in intertidal sediment of China: Occurrence, fate and influential factors

A Nondestructive Method to Identify POP Contamination Sources in Omnivorous Seabirds

Evaluating the fate and potential health risks of organochlorine pesticides and triclosan in soil, sediment, and water from Asa Dam River, Ilorin Kwara State, Nigeria

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