超越烟雾:为风险评估选择水管废水化学品
Yasmin Termeh-Zonoozi1,2, P Dilip Venugopal1,2, Vyomesh Patel2
1Contributed equally.
概括
管道废水含有许多有害化学物质,包括金属和NNK和NNN等毒素. 适当的处置对于减轻与水管烟草吸烟有关的环境风险至关重要.
科学领域:
- 环境科学 环境科学
- 毒理学 毒理学 毒理学
- 公共卫生 公共卫生
背景情况:
- 水管烟草吸烟的使用增加增加了对废水处理影响的担忧.
- 美国食品和药物管理局 (FDA) 要求对烟草法规进行环境影响评估.
- 这项研究评估了水管废水中发现的化学物质对水中的毒性.
研究的目的:
- 为环境风险评估,对水管废水中的化学物质进行表征.
- 为了识别对水生有毒性和危险废物分类而令人担忧的化学品.
- 为水管废物提供适当的处置实践信息.
主要方法:
- 从现有文献中编制的管道废水化学度.
- 根据持久性,生物积累和水生毒性 (PBT特征) 评估的化学品.
- 确定危险度值以评估环境风险.
主要成果:
- 在管道废水中确定了38种化学物质,20种是FDA列出的有害或潜在有害成分 (HPHC).
- 美国环境保护局 (EPA) 将15种化学品归类为危险废物.
- 由于PBT的特性和毒性,六种金属 (Cd,Cr,Pb,Hg,Ni,Se) 和NNK和NNN等有毒化合物被优先考虑进行风险评估.
结论:
- 管道废水含有多种危险化合物,需要小心处理.
- 在住宅和零售环境中,对适当的处置方法的认识至关重要.
- 进一步的研究应该包括命运和运输建模以及全面的风险评估.
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