Heavy metal contamination of soils and crops from auto traffic, sewage sludge, pig manure and chemical fertilizer

Agriculture & Biology

• sewage sludge 97%
• soil pollution 94%
• pig manure 93%
• traffic 83%
• automobiles 82%
• trace elements 80%
• heavy metals 71%
• composted manure 64%
• fertilizers 61%
• crops 42%
• radishes 35%
• sludge 35%
• Acacia confusa 28%
• soil 24%
• residential areas 22%
• seedlings 19%
• agricultural land 15%
• fertilizer application 15%
• animal manures 15%
• plant tissues 14%
• tissues 14%
• pesticides 13%
• metals 12%
• dosage 8%
• leaves 7%

Earth & Environmental Sciences

• chemical fertilizer 100%
• pig 81%
• trace metal 78%
• manure 77%
• sewage sludge 76%
• traffic 67%
• heavy metal 58%
• crop 57%
• fertilizer 55%
• contamination 53%
• compost 49%
• digested sludge 42%
• tissue 34%
• soil 34%
• seedling 32%
• agricultural land 25%
• experiment 25%
• sandy loam 18%
• residential area 17%
• pesticide 14%
• dose 11%
• metal 9%