And these secondary pollutants of mineral reagents can enlarge the scaleofpollution, and increase the complexity of pollution.
且这些二次污染物有的进一步交叉、作用，使矿山药剂的二次污染链延伸。
2
There have been few epidemiological studies to validate such claims, but the scaleof such reports highlights the growing fear of pollution.
目前还没有流行病学研究对这些说法进行认证，但是大量的报导加剧了人们对污染的恐惧。
3
Based on the scaleof current urban residential and the importance of indoor air quality at homes, the problem of indoor air pollution of four cities in China was studied in this paper.