Regional distribution of organochlorinated pesticides in pine needles and its indication for socioeconomic development

Xu, Defu; Zhong, Weike; Deng, Linlin; Chai, Zhifang; Mao, Xiaoxuan

doi:10.1016/j.chemosphere.2003.08.022

Cited by 49 publications

(36 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The α-HCH/γ-HCH ratio in this study ranges from 0.26 to 1.08, suggesting the mixed sources of technical HCH and lindane. This result was consistent with HCH sources on pine needles, particulate matters, and soils from urban parks in Beijing (Xu et al, 2004Li et al, 2008).…”

Section: Component Analysis 221 Hchssupporting

confidence: 78%

Residues of organochlorine pesticides in surface soils from college school yards in Beijing, China

Wang

Qin

et al. 2008

Journal of Environmental Sciences

View full text Add to dashboard Cite

Organochlorine pesticides (OCPs) have been a major environmental issue, attracting much scientific concern because of their nature of toxicity, persistence, and endocrine disrupting effects. Soil samples were collected from ten college school yards in Beijing in 2006 and analyzed to determine fifteen OCPs. Dichlorodiphenyltrichloroethanes (DDTs) were found to be the main pollutants, accounting for 93.70% of total OCPs, followed by hexachlorohexanes (HCHs) (2.25%) and hexachlorobenzene (HCB) (1.82%). Content of chlordanes (CHLs), heptachlors (HEPTs), and endosulfans comprised 0.51%, 1.05%, and 0.79% of fifteen OCPs, respectively. The preliminary pollution assessment indicated that DDTs have caused high OCPs levels in some schools. Source identification showed that HCHs in soils were originated from an old mixed source of technical HCHs and lindane. And DDTs were mainly from mixed use of technical DDTs and dicofol containing DDT impurities. According to GB15618-1995 (guidelines of Chinese environmental quality standards for soils), HCHs and DDTs levels might be categorized as little and low polluting pesticides. This study indicated that the environmental quality of college school yards with large green land were not as good as was expected and there existed potential exposure risk of college population to OCPs.

show abstract

Section: Component Analysis 221 Hchssupporting

confidence: 78%

Residues of organochlorine pesticides in surface soils from college school yards in Beijing, China

Wang

Qin

et al. 2008

Journal of Environmental Sciences

View full text Add to dashboard Cite

show abstract

“…Especially during 1960s to 1983, HCHs and DDTs accounting for about 78% of total pesticide production and usage (Hua and San, 1996;Li et al, 1998). Although the concentrations of OCPs in environmental matrix and foodstuffs have decreased since the 1980s because of the governmental restrictive measure, many studies showed the residues are still high (Nakata et al, 2002;Xu et al, 2004;Chen and Gao, 1993).…”

Section: Introductionmentioning

confidence: 99%

Investigation of organochlorine pesticides (OCPs) in mollusks collected from coastal sites along the Chinese Bohai Sea from 2002 to 2004

Wang

Yang

Jiang

2007

Environmental Pollution

View full text Add to dashboard Cite

show abstract

“…It is reported that hexachlorocyclohexanes (HCHs) and dichlorodiphenyltrichloroethanes (DDTs) accounted for 83.3% of total pesticides sold in Beijing before 1979. Till now, OCPs continue to be detected in atmosphere, water, soil, and biota of Beijing [11][12][13][14]. An earlier survey [11] has reported HCHs and DDTs residues were 240 pg m −3 and 962 pg m −3 in total suspend particles (TSP), 130 pg m −3 and 528 pg m −3 in PM 2.5 of Beijing.…”

Section: Introductionmentioning

confidence: 99%

Organochlorine Pesticides in the Soil in Linfen, China

Cheng

Liu

et al. 2008

Bull Environ Contam Toxicol

View full text Add to dashboard Cite

Eighteen organochlorine pesticides (OCPs) in air particulate matter (PM) samples collected from 20 sites in Beijing, China in 2005 and 2006 were analyzed to determine the composition, spatial distribution and sources. Total OCPs of PM 2.5 and PM 10 ranged from 32.59 pg m −3 to 9232.31 pg m −3 and 80.96 pg m −3 to 9434.97 pg m −3 , respectively, categorized as heavier pollution compared to other cities of China. Among six kinds of functional zones involved, commercial areas and industrial centers were heavily polluted. Distinct concentrations variations were detected in PM with different particle diameters. Pollution distribution was spatially heterogeneous inside the city. The most heavily polluted sites located in the southeast part of the city, where laid many chemical factories. Compositional analysis and principal component analysis (PCA) suggested that past usage of OCPs was the main source, though there were new inputs in some sites.

show abstract

Regional distribution of organochlorinated pesticides in pine needles and its indication for socioeconomic development

Cited by 49 publications

References 30 publications

Residues of organochlorine pesticides in surface soils from college school yards in Beijing, China

Residues of organochlorine pesticides in surface soils from college school yards in Beijing, China

Investigation of organochlorine pesticides (OCPs) in mollusks collected from coastal sites along the Chinese Bohai Sea from 2002 to 2004

Organochlorine Pesticides in the Soil in Linfen, China

Contact Info

Product

Resources

About