Organochlorine pesticides in the lower reaches of Yangtze River: Occurrence, ecological risk and temporal trends

Tang, Zhenwu; Huang, Qifei; Yang, Yufei; Zhu, Xiaohua; Fu, Haihui

doi:10.1016/j.ecoenv.2012.10.001

Cited by 75 publications

(22 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Pesticide concentrations in aquatic systems vary considerably, not only geographically but also temporally; sudden yet brief spikes in pesticide concentrations in tributaries that drain agricultural fields or urban areas can be contribute to surface and subsurface run-off following precipitation events (Kreuger, 1995;Tang et al, 2013;Wauchope, 1978). Tributaries that usually have low concentrations of contaminants can briefly reach concentrations that are toxic to aquatic invertebrates after these events (Lee et al, 2000).…”

Section: Introductionmentioning

confidence: 97%

Combination effects of pyrethroids and neonicotinoids on development and survival of Chironomus riparius

Kunce

Josefsson

Örberg

et al. 2015

Ecotoxicology and Environmental Safety

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 97%

Combination effects of pyrethroids and neonicotinoids on development and survival of Chironomus riparius

Kunce

Josefsson

Örberg

et al. 2015

Ecotoxicology and Environmental Safety

View full text Add to dashboard Cite

“…Ibarra et al 2011), ultimately find their way to the aquatic environment by rain runoff, rivers and streams, and associate with biotic and abiotic macroparticles and sediments. The rates of loading to the ecosystem are closely connected to human activities, such as domestic and industrial discharge, agricultural and street runoff, soil erosion, deforestation, atmospheric transport, deposition and other means (Feng et al 2011;Tang et al 2013) (Figs. 3, 4).…”

Section: Sources and Transport Pathways Of Ddts And Hchsmentioning

confidence: 99%

“…The extensive application of DDT and HCH, prior to the global restriction on their uses, resulted in widespread presence and elevated concentrations of these chemicals in air, water, soil, sediment and living beings (Barber et al 2005) in African (Awofolu and Fatoki 2003), Asian (Iwata et al 1994), developed European (FernandezAlba et al 1998) and American (Rawn and Muir 1999) countries creating a threat to human health and ecosystems (Wang et al 2012). Among the OCPs, the DDT and HCH have been listed as the top-most persistent organic pollutants (POPs), because of their remarkable toxic properties and acute poisoning with anti-estrogenic (androgenic) activity (Tang et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Environmental assessment of fate, transport and persistent behavior of dichlorodiphenyltrichloroethanes and hexachlorocyclohexanes in land and water ecosystems

Ahmed

Anawar

Takuwa

et al. 2015

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

Many studies have investigated the contamination level, spatial distribution, sources, chiral signals, and potential ecological and public health risks of dichlorodiphenyltrichloroethanes, its metabolites and the isomers of hexachlorocyclohexane in the environment. This study presents a critical review to provide updated knowledge about the fate, persistence, long-range transport and toxicity effects of dichlorodiphenyltrichloroethanes and hexachlorocyclohexanes in the environment on the basis of analytical data between 1990 and 2014. Highest levels were found for dichlorodiphenyltrichloroethanes (200-9300 ng/ L) and hexachlorocyclohexanes (20-36,000 ng/L) with mean values of 1000 and 5600 ng/L, which were 10 and 56 times higher than the European Community allowable residual limit of 100 ng/L, respectively, in Lake Taihu water of China obtained between 1999 and 2000. Levels of dichlorodiphenyltrichloroethanes in sediments and fish species were remarkably higher than hexachlorocyclohexanes. The highest levels of dichlorodiphenyltrichloroethanes in sediments were found up to 780-227,000 ng/g near a production factory in China and 20,000-5,463,000 ng/g in cattle dips disposal areas in Australia. Out of 32 selected locations for common fish species, tilapia had the highest mean concentration of dichlorodiphenyltrichloroethanes up to 3800 ng/g in Noha River of Japan in 2006. Dichlorodiphenyltrichloroethanes and hexachlorocyclohexanes derive from agricultural runoff, industrial and urban wastewater, etc., that ultimately associate with soil and sediments. The carbon-carbon and carbon-chlorine bonds in dichlorodiphenyltrichloroethanes and hexachlorocyclohexanes provide them persistence, lipophilicity and high binding affinity leading to bioaccumulation in the receptor protein. High accumulation of dichlorodiphenyltrichloroethanes and hexachlorocyclohexanes causes mutagenic, carcinogenic and endocrine disrupting toxicity effects to the humans and wildlife.

show abstract

“…Although the production and agricultural use of HCHs and DDTs have been banned in many countries, widespread pollution by these OCPs is still occurring in various environmental media and organisms from some countries including China, India and Columbia (Dhananjayan et al 2011;Liu et al 2013;Rojas-Squella et al 2013;Tang et al 2013;Guo et al 2014;Pan et al 2014), and high levels of OCPs in humans and animals have been reported in developing countries in recent years (Qu et al 2010;Rojas-Squella et al 2013). Therefore, there is an increasing need to better understand the sources of these chemicals and assess their potential ecological risks.…”

Section: Introductionmentioning

confidence: 99%

Levels and distribution of organochlorine pesticides and hexachlorobutadiene in soils and terrestrial organisms from a former pesticide-producing area in Southwest China

Tang

Huang

Nie

et al. 2015

Stoch Environ Res Risk Assess

Self Cite

View full text Add to dashboard Cite

The contamination of organochlorine pesticides (OCPs) and hexachlorobutadiene (HCBD) in soils, plants, and terrestrial fauna from a former pesticide-producing area in Southwest China was investigated. High levels of OCP residues (RHCHs and RDDTs of 3.89-13,386 and 23.3-11,186 ng g -1 dw, respectively) were found in the soils within the producing factory, indicating that the former pesticide factory brownfield site poses a high environment risk and that effective soil remediation is needed. The OCP concentrations in soils surrounding the pesticide factory were 1-2 orders of magnitude higher than in the other agricultural areas from China. Grass, vegetables, and tree leaves from the surrounding areas of the point source showed moderate OCP pollution, which was likely to be causing potential negative impacts on terrestrial ecosystem. OCP levels in terrestrial species from the studied area including insects, free-range chickens and birds were moderate, and were generally within accepted safe levels.b-HCH was the most prevalent isomer, implying that hexachlorocyclohexane (HCH) residues were mainly derived from the degradation of technical HCH. The dichlorodiphenyltrichloroethane (DDT) profiles reflected obvious degradation of technical DDT. In the study area, the concentrations of HCBD were \0.02-5.59, 0.03-24.6 ng g -1 dw and 1.65-3.80 ng g -1 lw in soils, plants, and animals, respectively, which were relatively low and not sufficient to cause observable adverse biological effects.

show abstract

Organochlorine pesticides in the lower reaches of Yangtze River: Occurrence, ecological risk and temporal trends

Cited by 75 publications

References 44 publications

Combination effects of pyrethroids and neonicotinoids on development and survival of Chironomus riparius

Combination effects of pyrethroids and neonicotinoids on development and survival of Chironomus riparius

Environmental assessment of fate, transport and persistent behavior of dichlorodiphenyltrichloroethanes and hexachlorocyclohexanes in land and water ecosystems

Levels and distribution of organochlorine pesticides and hexachlorobutadiene in soils and terrestrial organisms from a former pesticide-producing area in Southwest China

Contact Info

Product

Resources

About