Polycyclic aromatic hydrocarbons (PAHs) in urban surface dust of Guangzhou, China: Status, sources and human health risk assessment

Association of soil polycyclic aromatic hydrocarbon levels and anthropogenic impacts in a rapidly urbanizing region: Spatial distribution, soil–air exchange and ecological risk

“…Urbanization, an inevitable consequence of rapid economic development, is a multi-dimensional process with complicated outcomes (Zhu et al, 2011), such as increased domestic waste discharge (Wang et al, 2007), and water and air pollution (Cheung et al, 2003;Wang et al, 2007Wang et al, , 2011aPan et al, 2012;Zhang et al, 2012). As an important matrix in urban terrestrial environment, soil has been a major sink of contaminates (Jones, 1994;Hippelein and Mclachlan, 1998;Manzetti, 2013) and well interacts with other environmental compartments.…”

“…S1a). Therefore, the PRD, faced with the urgent task of balancing between sustainable socioeconomic development and environmental protection, is an ideal site for assessing anthropogenically derived contamination (Cai et al, 2007;Yang et al, 2010;Wang et al, 2011a). Previous studies have examined the occurrence of PAHs in soil of the PRD (Yu et al, 2007;Ma et al, 2008;Wang et al, 2012), but existing data are insufficient for an integrated assessment of urbanization-induced anthropogenic impacts on the environment.…”

Distribution and risks of polycyclic aromatic hydrocarbons in suburban and rural soils of Beijing with various land uses

“…Risk assessments of PAHs deposited in urban soils and road dust have been widely conducted to evaluate the environmental consequences of urbanization (Peng et al 2011(Peng et al , 2013Wang et al 2011Wang et al , 2013. The rapid urban sprawl in China has caused the transformation of suburban villages and former industrial areas to highly populated urban settlements.…”

Assessment of Polycyclic Aromatic Hydrocarbons and Heavy Metals Pollution in Soils of Guwahati City, Assam, India

“…The primary input of such organic pollutants into the soil surface is by air-to-surface precipitation 3 and it persists in the toplayer of the soil 4 . Because of the toxicity, exposure to such pollutants in the environment is detrimental to human health and so has become the focus of much attention 5,6 . Many HMs are naturally occurring; however, some are hazardous, particularly in high concentrations in human and plant cells.…”

“…Deep and mid-sea movements, which are free of coastal contamination, are vital for realistic tsunami forecasting and source identification with increased experience in tsunami analysis and simulated measurements 5 . The initial displacements of the free surface of different water wave conditions are induced by larger earthquakes of magnitude of more than 9.0 on the Richter scale, in which the generation of N-type waves is higher 6 . The dispersion relationship shows the better response of wavenumber variations with respect to bathymetery depths for each water wave conditions.…”