半城市地区大气中的多环芳化合物度:时间变化,风险评估,来源识别和不同环境中的水平估计
Burak Caliskan1, Semra Celik1, Ahmet Egemen Sakin1
1Department of Environmental Engineering, Faculty of Engineering, Bursa Uludag University, Nilüfer/Bursa, Turkey.
Environmental toxicology and chemistry
|January 23, 2025
概括
土耳其Görükle大气中的多环芳 (PAH) 水平在冬季较高,这是由于加热排放和天气. 度低于其他城市地区,造成癌症风险较低.
科学领域:
- 环境化学环境化学
- 大气科学 大气科学
- 公共卫生 公共卫生
背景情况:
- 多环芳 (PAH) 是源于不完全燃烧的持久性有机污染物.
- 评估PAH水平对于了解城市和半城市环境中的空气质量和潜在的健康风险至关重要.
研究的目的:
- 为了评估大气中的PAH度和季节性变化在Görükle,土耳其.
- 调查气象因素对PAH水平的影响.
- 评估与PAH暴露相关的潜在癌症风险.
主要方法:
- 在2021年6月至2022年2月的环境空气中测量16PAH度.
- 对气象数据和PAH度的统计分析.
- 气体粒子分离和平衡模型,用于环境介质中PAH分布.
- 源分配和空气质量轨迹分析.
- 癌症风险评估. 癌症风险评估.
主要成果:
- 平均16PAH度为24.85±19.16 ng/m3,冬季度是夏季度的五倍.
- 度显示与温度和混合高度的反向关系,与相对湿度的正相关.
- 多环氧化主要存在于气相中,较重的多环氧化积在土壤,叶子和树皮中,而2环和3环多环氧化则主导了空气样本.
- 确定的主要来源是汽车排放和住宅供暖,还有来自科凯利工业活动的额外投入.
- 癌症风险评估表明成人和儿童的风险较低.
结论:
- 氧化的季节性变化受到加热排放和气象条件的重大影响.
- 与许多城市和工业地区相比,Görükle的PAH度较低,这表明相关的健康风险相对较低.
- 了解PAH来源和环境分区是有效空气质量管理的关键.
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