Industrial organic compounds in selected Canadian soils

被引:21
作者
Webber, MD [1 ]
Wang, C [1 ]
机构
[1] AGR & AGRIFOOD CANADA, CTR LAND & BIOL RESOURCES RES, OTTAWA, ON K1A 0C6, CANADA
关键词
municipal sludge; industrial organic compounds; organic contaminants; agricultural sustainability; soil;
D O I
10.4141/cjss95-073
中图分类号
S15 [土壤学];
学科分类号
0903 ; 090301 ;
摘要
Studies were conducted to determine the concentrations of a large number of industrial organic compounds in selected Canadian agricultural soils and to assess the potential for land application of municipal sludges to cause significant polynuclear aromatic hydrocarbon (PAH), organochlorine pesticide (OC) and polychlorinated biphenyl (PCB) contamination of agricultural land. Twenty-four Agriculture and Agri-Food Canada, Soil Quality Evaluation Program (SQEP) benchmark soils and six intensively cropped southern Ontario soils exhibited similar small concentrations of a few base-neutral and acid (BN&A) extractable industrial organic compounds (seldom >1 mg kg(-1) dry wt), PCBs (<200 mu g kg(-1) dry wt) and organophosphorus pesticides (OPs). Fonofos, the only OP detected, was observed at concentrations <100 mu g kg(-1) dry wt. Neutral and phenoxy acid herbicide analyses for 13 soils (seven SQEP and six intensively cropped) indicated infrequent detection of these compounds. There was no detection of carbamate herbicides. In most soils, only trace amounts (<10 mu g kg(-1) dry wt) of OCs were observed but in one intensively cropped soil, DDT exceeded 70 mg kg(-1) dw. A greater incidence of compounds such as alpha chlordane, dieldrin, aldrin and DDT in intensively cropped than in other soils is assumed to reflect increased use of these compounds for intensive crop production. Soils treated with sludge according to recommended practice exhibited minor increases in PAH, OC and PCB concentrations. There is no risk to human health or the environment from industrial organic compounds, except possibly DDT, in Canadian agricultural soils that have received no sludge or from PAHs, OCs and PCBs in soils that have received southern Ontario sludges according to recommended practice.
引用
收藏
页码:513 / 524
页数:12
相关论文
共 23 条
[1]  
ACTON DF, 1995, AGR AGRIFOOD CANADA, V1906
[2]  
ANDERSON DW, 1987, SEARCH SOIL CONSERVA
[3]  
Bruntland GH, 1987, OUR COMMON FUTURE WO
[4]  
BYE J, 1991, BIOCYCLE, V32, P66
[5]   PERSISTENT ORGANIC AND INORGANIC PESTICIDE-RESIDUES IN ORCHARD SOILS AND VINEYARDS OF SOUTHERN ONTARIO [J].
FRANK, R ;
BRAUN, HE ;
ISHIDA, K ;
SUDA, P .
CANADIAN JOURNAL OF SOIL SCIENCE, 1976, 56 (04) :463-484
[6]   PERSISTENCE AND FATE OF ANTHRACENE AND BENZO(A)PYRENE IN MUNICIPAL SLUDGE TREATED SOIL [J].
GOODIN, JD ;
WEBBER, MD .
JOURNAL OF ENVIRONMENTAL QUALITY, 1995, 24 (02) :271-278
[7]  
HEGBERG BA, 1991, BIOCYCLE, V32, P58
[8]  
Kampe W., 1989, Organic contaminants in waste water, sludge and sediment: occurrence, fate and disposal., P35
[9]  
Moss G. H., 1987, Scientific basis for soil protection in the European Community, P17
[10]  
OCONNOR GA, 1991, REV ENVIRON CONTAM T, V121, P129