Distribution of anthropogenic cadmium and arsenic in arable land soils of Hainan, China

Autor:	Rongxiang Wang, Feng Huande, Dang Zhiguo, Dengfeng Wang
Rok vydání:	2015
Předmět:	Cadmium Ecology business.industry Health Toxicology and Mutagenesis chemistry.chemical_element Distribution (economics) Heavy metals Pollution chemistry Urbanization Environmental chemistry Soil water Environmental Chemistry Environmental science Arable land China business Arsenic
Zdroj:	Toxicological & Environmental Chemistry. 97:402-408
ISSN:	1029-0486 0277-2248
DOI:	10.1080/02772248.2015.1050193
Popis:	It is important to determine the distribution of anthropogenic heavy metals in arable land soils. Using Hainan Island as a study area, the background concentrations of cadmium (Cd) and arsenic (As) in arable land soils from different types of parent materials were estimated and then anthropogenic input distribution was determined by subtracting background concentrations from existing spatial distributions of Cd and As using ArcGIS spatial analysis tools. There were areas where the content of soil Cd and As did not show a change due to anthropogenic inputs, 8.4% As and 24.3% Cd content were below background concentrations, respectively. Soils with higher anthropogenic inputs were found around urban areas and the western part of Hainan Island. Data indicated that inputs were primarily produced by rapid urbanization and uncontrolled mining exploration. Anthropogenic Cd and As increases were also caused by excessive application of fertilizers.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ed5f5d9bdddf4c93ea6b516c78ba0fe4 https://doi.org/10.1080/02772248.2015.1050193 Zobrazit plný text záznamu