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931.
Contents and sources of polycyclic aromatic hydrocarbons and organochlorine pesticides in vegetable soils of Guangzhou, China 总被引:36,自引:0,他引:36
We investigated contents, distribution and possible sources of PAHs and organochlorine pesticides (Ops) in 43 surface and subsurface soils around the urban Guangzhou where variable kinds of vegetables are grown. The results indicate that the contents of PAHs (16 US EPA priority PAHs) range from 42 to 3077 microg/kg and the pollution extent is classified as a moderate level in comparison with other investigations and soil quality standards. The ratios of methylphenanthrenes to phenanthrene(MP/P), anthracene to anthracene plus phenanthrene (An/178), benz[a]anthracene to benz[a]anthracene plus chrysene (BaA/228), indeno[1,2,3-cd]pyrene to indeno[1,2,3-cd]pyrene plus benzo[ghi]perylene (In/In+BP) suggest that the sources of PAHs in the soil samples are mixed with a dominant contribution from petroleum and combustion of fossil fuel. The correlation analysis shows that the PAHs contents are significantly related to total organic carbon contents (TOC) (R2=0.75) and black carbon contents (BC) (R2=0.62) in the soil samples. Dichlorodiphenyltrichloroethane and metabolites (DDTs) and hexachlorocyclohexanes and metabolites (HCHs) account largely for the contaminants of OPs. The concentrations of DDTs range from 3.58 to 831 microg/kg and the ratios for DDT/(DDD+DDE) are higher than 2 in some soil samples, suggesting that DDT contamination still exists and may be caused by its persistence in soils and/or impurity in the pesticide dicofol. The concentrations of HCHs are 0.19-42.3 microg/kg. 相似文献
933.
Shuyi Wang Xiang Qi Yong Jiang Panpan Liu Wen Hao Jinbin Han Peng Liang 《Frontiers of Environmental Science & Engineering》2022,16(8):97
934.
Jin Baichuan Lin Zuhong Liu Weiyi Xiao Yong Meng Yuan Yao Xiaolong Zhang Tingting 《Environmental science and pollution research international》2022,29(14):20517-20529
Environmental Science and Pollution Research - The amount of dissolved organic matter (DOM) in a multi-source watershed is important for complete management and assessing the river basin’s... 相似文献
935.
Chen Chee Xiang Aris Azmi Yong Ee Ling Noor Zainura Zainon 《Environmental science and pollution research international》2022,29(4):4787-4802
Environmental Science and Pollution Research - Many advanced technologies have shown encouraging results in removing antibiotics from domestic wastewater. However, as activated sludge treatment is... 相似文献
936.
Li Li Meng Rui Lei Yalin Wu Sanmang Jiang Yong 《Environmental science and pollution research international》2022,29(42):63028-63040
Environmental Science and Pollution Research - After years of governance, China’s PM2.5 pollution has improved significantly, but some problems remain. PM2.5 is the carrier of many heavy... 相似文献
937.
Chen Yan Su Xuewei Ma Mingliang Hou Yongbo Lu Chenggang Liu Peizhe Ma Yong Wan Fei Yang Ying Hu Xinru Yu Zhenqi 《Environmental science and pollution research international》2022,29(58):87310-87318
Environmental Science and Pollution Research - In this work, the 3D magnetic flower-like Fe3O4@SiO2@Co3O4@BiOCl heterojunction photocatalyst was successfully prepared. The combination of BiOCl with... 相似文献