Organochlorine pesticide contamination in marine organisms of Yantai coast, northern Yellow Sea of China

Abstract

To evaluate the contamination of organochlorine pesticides (OCPs) in marine organisms and their potential health risk on consumers in the northern Yellow Sea of China, mollusks, wild shrimps, and crabs were collected from the Yantai coast, and the OCP contents in the samples were analyzed and compared. The results indicate that all the samples have been contaminated by OCPs, and OCP concentrations varied in individual species and in sampling sites. Among the studied OCPs, ∑HCH and ∑DDT concentrations ranged from 0.91 to 13.92 ng g −1 and from 10.16 to 411.19 ng g −1 , respectively. Meretrix was highly enriched with HCHs, while the highest DDT concentration was found in Crassostrea. For the OCP isomers, β-HCH was the predominant isomer of HCHs, and p,p′-DDE concentration was much higher than other isomers of DDTs. The concentrations of other OCPs (HCB, t-CHL, endrin, and mirex) were relatively low. For the shrimp and crab samples, Alpheus distinguendus samples accumulated a higher level of HCHs but lower DDTs than Oratosquilla aratoria and Carcinoplax vestitus in all sampling areas. HCHs in the samples of contrast area were not significantly lower than that of the sewage outfall area and port area, whereas DDTs in the samples of contrast area were relatively lower than that of the other two areas. Generally, all the OCP contents in the samples are in the range of the edible hygienic criteria except the total concentration of DDTs in Crassostrea.

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

“…There were only a few reports on DDTs in the SYS, although central SYS and the coastal areas are both dramatically affected by anthropogenic activities (Lin et al, 2012b;Chen et al, 2014). In this paper, almost all the historical DDTs data of the SYS from this study and previous studies have been compiled and compared to better characterize their historical trend.…”

“…As a result approximately 7.6% of contaminants from municipal and industrial activities around the SYS coastal regions have been discharged into the SYS (China's State Oceanic Administration (CSOA), 2007; Ministry of Environmental Protection of the People's Republic of China (MEPPRC), 2007; Duan et al, 2013). Therein, marine sediments from the SYS have been used to determine POPs pollution levels and to evaluate their ecological risks Da et al, 2013;Chen et al, 2014).…”

Organochlorine pesticides, brominated flame retardants, synthetic musks and polycyclic aromatic hydrocarbons in shrimps. An overview of occurrence and its implication on human exposure

“…Table S1 (supplementary data) summarizes published studies from 2004 to 2020 regarding shrimp contamination with OCPs [ 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 ]. The most studied OCPs in these publications are hexachlorocyclohexanes (HCHs), DDT, dichlorodiphenyldichloroethylene (DDE), and dichlorodiphenyldichloroethane (DDD).…”

“…Although, we must consider that there are more studies available in this continent, which increase the chances to find contaminants. China is the country with the most studies conducted [ 48 , 54 , 57 , 58 , 60 , 61 , 64 , 67 , 68 , 70 , 74 , 75 , 76 ] contributing extensively to the larger number of papers in Asia and making the public aware of the risk of shrimp consumption. The next highest values found for ƩOCPs in shrimp were Egypt [ 65 ] and Mexico [ 66 ], followed by some European countries [ 43 , 47 , 49 , 51 , 73 ].…”

“…supplementary data) summarizes published studies from 2004 to 2020 regarding shrimp contamination with OCPs[43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76]…”