Soil contamination by halogenated polycyclic aromatic hydrocarbons from open burning of e-waste in Agbogbloshie (Accra, Ghana)

2016 ◽  
Vol 19 (4) ◽  
pp. 1324-1332 ◽  
Author(s):  
Nguyen Minh Tue ◽  
Akitoshi Goto ◽  
Shin Takahashi ◽  
Takaaki Itai ◽  
Kwadwo Ansong Asante ◽  
...  
Atmosphere ◽  
2021 ◽  
Vol 12 (9) ◽  
pp. 1129
Author(s):  
Xinghua Li ◽  
Zihao Wang ◽  
Tailun Guo

Field measured PAH emissions from diverse sources in China are limited or even not available. In this study, the PM2.5-bound PAH emission factors (EFs) for typical biomass and coal combustion in China were determined on-site. The measured total PAH EFs were 24.5 mg/kg for household coal burning, 10.5–13.9 mg/kg for household biofuel burning, 8.1–8.6 mg/kg for biomass open burning, and 0.021–0.31 mg/kg for coal-fired boilers, respectively. These EF values were compared with previous studies. The sources profiles of PAHs for four sources were developed to use in chemical mass balance receptor modelling. BaP equivalent EFs (EFBaPeq) were calculated to evaluate PAH emission toxicity among different combustion sources, and were 6.81, 2.94–4.22, 1.59–3.62, and 0.0006–0.042 mg/kg for those four types of sources, respectively.


2021 ◽  
Author(s):  
Claire Froger ◽  
Nicolas P. A. Saby ◽  
Claudy C. Jolivet ◽  
Line Boulonne ◽  
Giovanni Caria ◽  
...  

Abstract. Polycyclic aromatic hydrocarbons (PAHs) are persistent organic pollutants produced by anthropogenic activities that contaminate all environmental spheres, including soils. This study focused on PAHs measured in 2154 soils in France, covering the entire territory based on a regular sampling grid. The quantified concentrations in the Σ15PAHs ranged from 5.1 to 31200 µg · kg−1, with a median value of 32.6 µg · kg−1, and PAHs were detected in 70 % of the soil samples. The map of Σ15PAHs concentrations revealed strong spatial variations in soil contamination throughout France, with larger concentrations in soils of industrial regions and near major cities. PAHs molecular diagnostic ratios supports the historical origin of PAHs in the northern part of France being linked to the significant emissions of PAHs in Europe during the industrial period of 1850–1950 with in particular the contribution of coal/biomass combustion and iron-steel production. A health risk assessment conducted for the residential population resulted in a median value of 1.07 × 10−8 in total lifetime cancer risk, with only 20 sites above the limit of 10−6 and one above the limit of 10−5 adopted by the French government. These results reveal the need to conduct large-scale studies on soil contamination to determine the fate of PAHs and evaluate the risks induced by soil pollution at a country-level scale.


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