Abstract: There are about 230 tons of oil discharged from industrial influents in Tianjin each year.In order to examine the pollution status of oil and Bap in south district of Tianjin,a coorperative study was made.Results show that there exists a relationship between the soil pollution by oil and that by Bap.When oil content is higher in soil and vegetable,the Bap content is also in case.In the location near pollution source,the contents of oil and Bap in soil and vegetable are higher than those far from it.But little difference is found for cereals.

Key words: wheat, seedling, salt-alkali stress, antioxidant system, humic acid