Distribution and sources of petroleum-hydrocarbon in soil profiles of the Hunpu wastewater-irrigated area, China's northeast

Monitoring of polycyclic aromatic hydrocarbons on agricultural lands surrounding Tehran oil refinery

“…It appears that irrigation with untreated urban wastewater and urban runoff has increased the PAH concentration in this land. Other researchers (Zhang et al 2012;Tao et al 2004) have reported similar increases in PAH concentrations in the soil of land irrigated with untreated urban wastewater. Total PAH concentrations were higher at depth 2 than at depth 1.…”

Petroleum contamination in groundwater/air and its effects on farmland soil in the outskirt of an industrial city in China

“…The reason is that the farmlands in the Hunpu region are mainly irrigated in May. In addition, the soil properties had some effects on hydrocarbon distribution in soil indicated by our previous study (Zhang et al, 2012).…”

“…Long-term irrigation with wastewater results in the excessive accumulation of petroleum pollutants in agricultural soils (Song et al, 2005;Zhang et al, 2012;Zhang et al, submitted for publication). Since 2002, wastewater irrigation has been forbidden and replaced with groundwater irrigation in the Hunpu region.…”

Effects of Humic Substances on Transport of Petroleum Hydrocarbons from Soils to Vegetables

“…Petroleum hydrocarbons (PHs) mainly consist of aliphatic hydrocarbons (AHs) and polycyclic aromatic hydrocarbons (PAHs), whose concentrations are enhanced in soils resulted from various human activities [1]. Various pathways of transport of organic contaminants from soils to plants were discussed in previous studies, including passive absorption, plant transpiration, and reactions with root lipid content [2,3].…”