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来自巴西工业化城市的城市花园中的多种潜在有毒元素

Camila Neves Lange¹, Bruna Moreira Freire², Lucilena Rebelo Monteiro³

¹Centro de Ciências Naturais e Humanas, Universidade Federal do ABC (UFABC), Avenida Dos Estados, 5001 - Bairro Santa Terezinha, Santo André, SP, 09210-580, Brazil. camila.lange@ufabc.edu.br.

Environmental geochemistry and health

|January 16, 2024

概括

巴西圣安德烈的城市花园显示土壤受到潜在有毒元素 (PTEs) 的污染,特别是. 虽然对成人的风险很低,但土壤修改带来了风险,并且由于细菌和抗菌素耐药性,需要改进管理.

科学领域:

环境科学环境科学
城市生态城市生态学
土壤科学土壤科学

背景情况:

城市农业正在巴西圣安德烈 (Santo André) 扩大,该地区具有工业活动.
潜在的风险包括城市种植的食品被土壤中的潜在有毒元素 (PTEs) 和修订物污染.

研究的目的:

评估PTE (As, Ba, Cd, Co, Cu, Cr, Ni, Mo, Pb, Sb, Se, V, Zn) 在圣安德烈城市花园的土壤和土壤修饰中的度.
评估相关的环境和健康风险.

主要方法:

从城市花园收集了土壤和土壤修饰样本 (分别为n=85和n=19).
分析了13种PTE的度.
用地质化学指数 (Igeo,Cf,Er) 和多变量统计方法来评估污染和确定污染源.
评估了土壤修改物中的细菌存在和抗菌素耐药性.

主要成果:

在农业土壤中,度超过了法规限制.
地质化学指数显示,对As,Ba,Cr,Cu,Pb,Se和Zn的污染中度至严重,特别是在石化综合体附近.
土壤修饰被确定为Ba,Zn和Pb污染的来源.
在土壤修正物中检测到致病细菌和抗菌素耐药性.

结论:

虽然对成人的致癌和非致癌风险低于可接受的范围,但在圣安德烈的城市花园中,土壤被PTE污染是令人担忧的.
土壤修改物是PTE污染的重要来源,并携带具有抗菌素耐药性的致病细菌.
改善土壤管理实践是必要的,以确保该地区城市农业的安全.

关键词:

抗微生物耐药性抗微生物耐药性评估健康风险评估健康风险多变量分析多变量分析.土壤土壤土壤.土壤的修改土壤的修改

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