Investigation of heavy metalloid pollutants in the south of Tehran using kriging method and HYDRUS model

Geoscience Letters

Official Journal of the Asia Oceania Geosciences Society (AOGS)

Table 6 Heavy metal standard in agricultural soils in different countries

Countries	Heavy metal standard in agricultural soils
Australia	300	600	100
Canada	200	100	150
China	80	60–40	200–50
Germany	1000	200	200
Tanzania	200	100	200
Netherlands	530	100	190
New Zealand	160	-	10,000