土壤pH | 土壤环境质量标准/(mg·kg−1) | ||||
镉 | 汞 | 砷 | 铅 | 铬 | |
5.5 < pH ≤ 6.5 | 0.3 | 1.8 | 40 | 90 | 150 |
6.5 < pH ≤ 7.5 | 0.3 | 2.4 | 30 | 120 | 200 |
pH > 7.5 | 0.6 | 3.4 | 25 | 170 | 250 |