Lead Pollution of Farm Soil on both Sides of Highway and its Impact on the Quality Safety of Melon

We selected the 1 08 Mission along the Qi-east Highway and the 109 corporation along the Qi-ban Highway to test the lead content of soil and melon.And it was found that the soil and melon lead contents increased obviously in the range of 0-50 m and 50-100 m because of automobile exhaust.Single factor analysis of variance test results showed that the lead contents in the soil and those in melon fruit at setting or mature stage in the contaminated areas,the minor contaminated areas and the contrast test areas were significantly different.Moreover,correlation analysis showed that the lead contents in the soil and in the melon at fruiting and mature stages had a very significant positive correlation.