During the process of reconnaissance, exploitation, transportation and deposit, a large area around the oil field suffered from serious pollution.

在石油的勘察、开采、运输以及储存过程中，油田周围大面积土壤都受到严重的污染。

youdao

Suggestions for future thallium pollution protection have been put forward according to present state of Xiangquan thallium mineralized district and possible exploitation of thallium deposit.

针对香泉铊矿化区铊污染的现状和未来铊矿床的开采，提出防治建议。

youdao

Metal deposit environmental pollution originates from the oxidation and decomposition reaction of metal sulfides , particularly pyrite(FeS 2) and pyrrhotite (FeS).

金属矿山环境污染源于金属硫化物特别是黄铁矿、磁黄铁矿的氧化分解。

youdao