袁海燕　宫进忠　陈春山

摘要系统采集了河北省廊坊市规划区范围内粉尘样品，定量分析了As、Cd、Hg、Pb毒重金属元素含量，利用地理信息系统编制了地球化学图、异常图及组合异常图。结果表明，该区粉尘毒重金属起始污染面积占总面积的21%，主要污染元素组合为Hg、Pb，其次为Cd、As。在规划区调查基础上，又在主城区范围内进行了加密采样，二者元素地球化学特征相似、异常基本重现，但异常面积缩小、均值和极值增高，同时出现若干局部细节特征，反映出采样密度和季节的共同影响作用。此外还研究了粉尘重金属环境污染途径及人体循环特征。最后，根据该区实际情况，向有关部门提出了防治对策建议。

关键词粉尘毒重金属；污染途径；人体循环；防治对策建议；廊坊市

中图分类号S181.3；P632文献标识码A文章编号0517-6611（2015）07-233-04

Causes and Countermeasures of Dust Heavy Metals Pollution in Langfang City Planning Area

YUAN Hai-yan， GONG Jin-zhong， CHEN Chun-shan

（Geophysical Exploration Institute of Hebei Province， Langfang， Hebei 065000）

AbstractDust samples were collected within Langfang planning area， Hebei Province， toxic heavy metals As， Cd， Hg， Pb contents were analyzed. The geographic information system was used to prepare geochemical maps， anomaly maps and combination anomaly maps. The results showed that dust toxic heavy metal pollution occupy 21% of the total area， the main elements combination of pollution were Hg， Pb， followed by Cd， As. On the basis of the planning area investigation， encrypted sampled within the scope of the main city， geochemical characteristics were similar， abnormal basic reproduced， but abnormal area was reduced， the mean and extreme values increased. At the same time appeared some local minutiae， reflecting the combined effect of the role of sampling density and season. The dust heavy metal pollution pathways and Human circulatory characteristics were also studied. Final， according to the actual situation in the area， countermeasures for the related authorities were put forward.

Key wordsDust toxic heavy metal； Pollution pathways； Human circulatory； Prevention suggestions； Langfang City

面对资源约束趋紧、环境污染严重、生态系统退化的严峻形势，中共“十八大”提出必须树立尊重自然、顺应自然、保护自然的生态文明理念，坚持预防为主、综合治理，以解决损害群众健康突出环境问题为重点，强化水、大气、土壤等污染防治。但当前经济快速增长与环境保护的矛盾仍十分尖锐，全国主要污染物排放继续上升，一些高耗能、高污染行业的项目仍在盲目扩张，环境违法违规行为屡禁不绝，主要污染物排放量超过环境承载能力，水、大气、土壤等污染日益严重，固体废物、汽车尾气、持久性有机物等污染持续增加，流经城市的河段普遍遭到污染。……