Did you put hydrochloric acid in this mug ?

你在杯子里面放了盐酸吗?

But extracting and processing them can be dirty , dangerous work , blackening the soil with mine waste and polluting the water with hydrochloric acid and the air with radioactive dust .

但其开采和加工有可能是高污染的危险工作，其废物会污染土壤，还会产生盐酸和放射性尘埃，二者分别对水体和空气造成污染。