[Studies on residues of organochlorine pesticides and heavy metals in soil of planting base and Pogostemon cablin].
OBJECTIVE
To determine and evaluate the residuals of organochlorine pesticides and heavy metals in soil and in Pogostemon cablin in order to provide for GAP planting.


METHODS
GC method was applied to determine residuals of organochlorine pesticides, the contents of Pb, Cd, Cu, Cr, Hg and As were determined by IPC.


RESULTS
The contents of residuals of organochlorine pesticides and heavy metals were different among three cultivars and planting bases clearly, but all of the residuals in soil from three planting bases were below the second standard of Environmental quality standard for soils (GB15618), and the residuals in P. cablin also meet the "Green standards of medicinal plants and preparations for foreign trade and economy".


CONCLUSIONS
Residuals of organochlorine pesticides and heavy metals in soil and P. cablin from three planting bases in Hainan province were conformed to GAP.
Wu
You-Gen
YG
Institute of Chinese Medicinal Materials, Nanjing Agricultural University, Nanjing 210095, China.
Guo
Qiao-Sheng
QS
Zheng
Huan-Qiang
HQ
D006843:Hydrocarbons, Chlorinated / Q000032:analysis*; D019686:Lamiaceae / Q000254:growth & development*; D019216:Metals, Heavy / Q000032:analysis*; D010573:Pesticide Residues / Q000032:analysis*; D012987:Soil / Q000032:analysis*; D012989:Soil Pollutants / Q000032:analysis*
D006843:Hydrocarbons, Chlorinated; D019216:Metals, Heavy; D010573:Pesticide Residues; D012987:Soil; D012989:Soil Pollutants