调查饮用水中二氧化的存在:对公共卫生的影响
Manoj Kumawat1, Namrata Pal1, Poonam Sharma1
1ICMR-National Institute for Research in Environmental Health, Bhopal, Madhya Pradesh, India.
International journal of environmental health research
|February 28, 2024
概括
在饮用水中检测到超出安全标准的高度有毒的二氧化物,特别是多二子二子二氧化物 (PCDD). 这对公众健康构成重大风险,需要对这些持久有机污染物进行进一步的研究.
科学领域:
- 环境化学环境化学
- 公共卫生 公共卫生
- 毒理学 毒理学 毒理学
背景情况:
- 二氧化物,特别是多二子-p-二氧化物 (PCDD),是引起重大关注的持久性有机污染物.
- 它们在饮用水中的存在,由于生物积累和毒性,造成长期的健康风险.
研究的目的:
- 在饮用水样本中检测和量化特定的二氧化同源.
- 评估二氧化污染的季节性变化.
- 根据估计的每日摄入量来评估对公众健康的风险.
主要方法:
- 使用气体染色体质谱学分析饮用水样本的二氧化同源.
- 2,3,7,8-四二二氧化 (TCDD),1,2,3,7,8-五二二氧化 (PeCDD) 和八二二二氧化 (OCDD) 的量化.
- 计算几何平均度和估计的每日摄入量.
主要成果:
- 在冬季样本中检测到三种二氧化类同源物 (TCDD,PeCDD,OCDD);夏季样本中检测到TCDD和OCDD.
- PCDD的几何平均度 (冬季为229.9 ng/L,夏季为108.4 ng/L) 超过了USEPA的30 pg/L的最大污染物水平.
- 估计PCDD的每日摄入量超过了安全限值,特别是在冬季.
结论:
- 饮用水是PCDD的重要暴露途径.
- 二氧化污染的季节性变化凸显了持续监测的必要性.
- 迫切需要进一步的研究和监管行动,以保护公众健康免受二氧化暴露.
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