CAJ | 학술논문

通过对长江下游南京至苏州一带铅污染土壤中含铅矿物的鉴定识别和来源分析，确定土壤中铅的来源，既有附近含铅矿床开采过程中带出的含铅矿物，也有人为叠加的成分。作为相对稳定的含铅矿物，方铅矿、白铅矿和人工含铅颗粒含量越高，土壤中有效态铅所占比例就越低。对 Pb 异常土壤中含 Pb 矿物的研究，可以解释土壤与农作物籽实中铅含量间的复杂关系，同时也可以为生态地球化学评价标准和预测预警方案的制定提供参考。
통과대장강하유남경지소주일대연오염토양중함연광물적감정식별화래원분석，학정토양중연적래원，기유부근함연광상개채과정중대출적함연광물，야유인위첩가적성분。작위상대은정적함연광물，방연광、백연광화인공함연과립함량월고，토양중유효태연소점비례취월저。대 Pb 이상토양중함 Pb 광물적연구，가이해석토양여농작물자실중연함량간적복잡관계，동시야가이위생태지구화학평개표준화예측예경방안적제정제공삼고。
The environmental significance of Pb bearing minerals was studied in soil with heavy metal Pb anomaly around Nanjing to Suzhou at the lower reaches of Changjiang river.The results of mineral identification and source analysis showed that Pb deposits and anthropogenic activity pollution were the main sources of heavy metal Pb in urban soil.As heavy metal Pb in minerals was much inactive normally,galena,cerussite and manual-particles content showed opposite tendency to that of bio-available Pb in soil,which could explain the complex relationship between Pb content in crop and in soil.The evaluation criterion range of heavy metal Pb content in eco-geochemical assessment could be properly broadened according to the content of minerals in the area around Pb deposit or metal smelters.At the same time,it should be taken into account that heavy metal Pb in minerals could also be released in some extreme conditions such as low pH value.Forecast should be raised in order to prevent the environmental disaster produced by the activated heavy metal Pb in minerals.