Contamination, sources and health risk of heavy metals in soil and dust from different functional areas in an industrial city of Panzhihua City, Southwest China

2021 ◽  
pp. 126638
Author(s):  
Zhijie Long ◽  
He Zhu ◽  
Haijian Bing ◽  
Xin Tian ◽  
Zhiguo Wang ◽  
...  
RSC Advances ◽  
2021 ◽  
Vol 11 (20) ◽  
pp. 12306-12314
Author(s):  
Mengying Li ◽  
Yishu Qin ◽  
Chengchen Wang ◽  
Kun Wang ◽  
Zhihua Deng ◽  
...  

We analyzed the total and bioaccessible concentrations of heavy metals in a popular vegetable cabbage (Brassica oleracea) from producing cities in Yunnan, Southwest China and assessed their health risk based on both bioaccessibility and cytotoxicity.


2021 ◽  
Author(s):  
Zhengwu Cui ◽  
Yang Wang ◽  
Rui Yu ◽  
Yong Yu ◽  
Nana Luo

Abstract 124 road dust samples were collected from an urban area of Shenyang, a typical heavily industrial city in Northeast China, to study the concentration, pollution level, source, spatial distribution, and health risk of heavy metals. The average concentrations of Cd, Cr, Cu, Mn, Ni, Pb, and Zn were 1.802, 132.1, 60.33, 778.3, 54.80, 86.73, and 391.2 mg/kg, respectively. The levels of metal pollution ranged from minimal to extremely high, with average levels in the ranked order: Mn < Ni < Cr < Cu < Pb < Zn < Cd, indicating that the road dust was heavily polluted by Cd, Zn, and Pb. Source identification results demonstrated that Cr, Mn, and Ni had mixed sources including industrial emissions and weathering of soil, pavements, and building materials, while Cu, Pb, and Zn mainly originated from traffic and industrial activities, and Cd had a complex mixture of sources (with various anthropogenic sources). Hotspots of heavy metal pollution levels were closely correlated with local anthropogenic activities, such as industrial discharge, traffic-related exhaust emissions, and agricultural activities. Furthermore, health risk assessment revealed significant non-carcinogenic risks for children from multiple metals, and the carcinogenic risk assessment identified significant risks for children from Cd, with ingestion being the main exposure pathway for carcinogenic and non-carcinogenic risk for adults and children. However, no health risk was observed due to dermal and inhalation exposure pathways.


2019 ◽  
Vol 251 ◽  
pp. 839-849 ◽  
Author(s):  
Li Zhou ◽  
Guijian Liu ◽  
Mengchen Shen ◽  
Ruoyu Hu ◽  
Mei Sun ◽  
...  

2015 ◽  
Vol 38 (2) ◽  
pp. 353-362 ◽  
Author(s):  
Youping Li ◽  
Zhisheng Zhang ◽  
Huifang Liu ◽  
Hong Zhou ◽  
Zhongyu Fan ◽  
...  

Author(s):  
Ibrahim I. Shabbaj ◽  
Mansour A. Alghamdi ◽  
Magdy Shamy ◽  
Salwa K. Hassan ◽  
Musaab M. Alsharif ◽  
...  

Data dealing with the assessment of heavy metal pollution in road dusts in Jeddah, Saudi Arabia and its implication to human health risk of human exposure to heavy metals, are scarce. Road dusts were collected from five different functional areas (traffic areas TA, parking areas PA, residential areas RA, mixed residential commercial areas MCRA and suburban areas SA) in Jeddah and one in rural area (RUA) in Hada Al Sham. We aimed to measure the pollution levels of heavy metals and estimate their health risk of human exposure applying risk assessment models described by USEPA. Using geo-accumulation index (Igeo), the pollution level of heavy metals in urban road dusts was in the following order Cd &gt; As &gt; Pb &gt; Zn &gt; Cu &gt; Ni &gt; Cr &gt; V &gt; Mn &gt; Co &gt; Fe. Urban road dust was found to be moderately to heavily contaminated with As, Pb and Zn, and heavily to extremely contaminated with Cd. Calculation of enrichment factor (EF) revealed that heavy metals in TA had the highest values compared to that of the other functional areas. Cd, As, Pb, Zn and Cu were severely enriched, while Mn, V, Co, Ni and Cr were moderately enriched. Fe was consider as a natural element and consequently excluded. The concentrations of heavy metals in road dusts of functional areas were in the following order: TA &gt; PA &gt; MCRA &gt; SA &gt; RA &gt; RUA. The study revealed that both children and adults in all studied areas having health quotient (HQ) &lt; 1 are at negligible non-carcinogenic risk. The only exception was for children exposed to As in TA. They had an ingestion health quotient (HQing) 1.18 and a health index (HI) 1.19. The most prominent exposure route was ingestion. The cancer risk for children and adults from exposure to Pb, Cd, Co, Ni, and Cr was found to be negligible (&lt; 1 x 10-6).


2020 ◽  
Vol 744 ◽  
pp. 140762
Author(s):  
Morteza Sabouhi ◽  
Mohammad Saleh Ali-Taleshi ◽  
Anna Bourliva ◽  
Farhad Nejadkoorki ◽  
Stefania Squizzato

Sign in / Sign up

Export Citation Format

Share Document