Geochemistry characteristics and evaluation of the pollution extent of arsenic in wastewater irrigated soil in the North of Tianjin City

Abstract

Based on sampling depths, the research environment of the soil in a study area is divided into two parts: the I environment (I-E) and the II environment (II-E). The results of the statistical analysis of arsenic (As) in the soil of the I-E indicates that the statistical characteristic value obey a normal distribution. The mean value of As is close to the world mean value, China and Tianjin City. Also, the contrast between the spatial change characteristics of As of the I-E and the II-E soils showed that the I-E resembles the II-E in the content variety of As. On the other hand, geochemistry methods were applied in the estimation of contaminated extent. The results indicated that the contamination extent of the north of Tianjin City has not been serious.

References

1. Arun B J Gerald S P Kurzius-Spencer M et al. 2006 Environmental arsenicexposure and sputum metalloproteinase concentrationsEnvironmental Research102283290
2. Cao S P 2004 Vertical distribution of heavy metal pollutant in soilprofile of TianjinContributions to Geologyand Mineral Resources Research19(4)270274 (in Chinese with English abstract)
3. Daniela S M Massimo A Adriana B et al. 2002 Heavy metals in urban soils: Acase study from the city of Palermo (Sicily), ItalyThe Science of the Total Environment300229243
4. Division of Laboratory Management, Departmentof Science and Technology, Ministry of Geology and Mineral Resources 1993 DZG93 Instruction of Ministry of Geologyand Mineral Resources, the People's Republic of China, Analysis Proceduresfor Rock and OreXi'anShaanxi Science & Technology Press108109 (in Chinese)
5. GB15618-1995, Environmental Quality Standard for Soil
6. Myrold D D 2003 Nitrogen cycle in soilPlimmerJ RGammon D WRagsdale N NEncyclopedia of AgrochemicalsJohn Wiley & Sons11211130
7. Shu J Y Zhang S R Sun B et al. 2005 Dynamic analysis of soil organicmatter contents in soil and water conservation region of Xingguo County,Jiangxi ProvinceActa Ecologica Sinica25(6)12401246 (in Chinesewith English abstract)
8. The Office of Guangdong Soil Survey. 1993 Soil of GuangdongBeijingScience Press (in Chinese)
9. Xiang Y C 2002 Implementation and techniques of regional geochemical datamanagement and information systemGeophysical &Geochemical Exploration26(3)209214 (in Chinese with English abstract)
10. Yang J C Han X G Huang J H et al. 2003 The dynamics of soil organic matterin cropland responding to agricultural practicesActa Ecologica Sinica23(4)787796 (in Chinese with English abstract)
11. Yang Z F Xu J K Shi J F 1992 Geochemistry of Precambrian sedimentaryrocks and its implications for crustal evolutionGeological Science and Technology Information(3)2530 (in Chinese with English abstract)