潜在污染 meaning in English

pollution potential

Investigation of potentially contaminated sites - code of practice
潜在污染地的勘测.实施规程
Complaints per day were received about various potential pollution violations
各种有关潜在污染违反的投诉。
The hazardous waste in china is a very large potential pollution
在中国，有害废弃物是一种非常巨大的潜在污染。
Q2 is there a potential contamination which could cause major injury or harm
问题2 ?是否存在会导致重大伤害或危害的潜在污染？