Perfluorinated Compounds in Water, Sediment and Soil from Guanting Reservoir, China

Abstract

Concentrations of 12 perfluorinated compounds (PFCs) were measured in 21 representive water, sediment and soil samples from Guanting Reservoir and vicinity. Perfluorooctanoic acid (PFOA) was the predominant PFCs with concentrations of 0.55-2.3 ng/L, \LOQ to 0.68 ng/g dw and \LOQ to 2.8 ng/g dw in water, sediment and soil, respectively. Perfluorododecanoic acid (PFDoA) was frequently detected in solid matrices, with concentrations of \LOQ to 0.18 ng/g dw in sediment and 0.13-0.26 ng/g dw in soil. PFCs were detected in all environmental matrices sampled, but concentrations found throughout the watershed were less than those reported from other locations.

Perfluoroalkyl substances in soils around the Nepali Koshi River: levels, distribution, and mass balance

“…Concentrations of PFOA and PFOS were significantly less than the residential soil screening guidance values issued by US-EPA (PFOA, 16,000 ng/g; PFOS, 6,000 ng/g) (US-EPA 2009). Results obtained from the present study were compared with those previously reported in other areas (Table 3) (Wang et al 2011;Wang et al 2012a;Meng et al 2013a;Naile et al 2010;Li et al 2010). Basically, Concentrations of PFASs around the Koshi River were less than those reported from the areas with higher level of industrialization, such as Shanghai, Tianjin Binhai New Area in Chin and the west coast of South Korea.…”

Perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) concentrations in the South Korean agricultural environment: A national survey

“…The LOQ of PFOS accounts to 0.00005 and 0.01 µg kg -1 for water and soil samples, respectively. The mass instrument and proficiency differences gave lower LOQs than previously reported values (Naile et al 2010;Wang et al 2011). The precisions of PFOA and PFOS were 4.3 and 5.8% for water, and 3.4 and 5.8% for soil, respectively.…”

“…Soil PFOA and PFOS in the soil samples were extracted using a method similar to that described by Wang et al (2011). Briefly, samples were dried in a drying oven at 80°C, homogenized and passed through a 2-mm sieve.…”

“…Among PFCs, perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) have received a great deal of attention in recent years as they are the most dominant and/or common of these compounds in the environment (Ahrens 2011). Studies have found PFOS and PFOA in urban and/or remote soil (Washington et al 2008;Wang et al 2011;Xiao et al 2015), sediment (Yang et al 2011), air (Lai et al 2016), surface water (Yamashita et al 2005;So et al 2007;Jin et al 2009), rain (Kim and Kannan 2007), snow (Liu et al 2009), wastewater effluent (Xiao et al 2012;Zareitalabad et al 2013), food (Binelli and Provini 2003;Pan et al 2011;Wu et al 2012), wildlife (Yeung et al 2009) and humans (Taniyasu et al 2003;Pan et al 2010).…”

Identify biosorption effects of Thiobacillus towards perfluorooctanoic acid (PFOA): Pilot study from field to laboratory

“…Moreover, the sediment samples from the Xiaoqing River revealed a much higher level of PFOA which ranged from 3.86 to 456.20 ng/g dw and a mean concentration of 103.14 ng/g dw. It therefore, indicated that the study area was in the condition of more serious PFOA pollution compared to the counterparts of the South Bohai coastal rivers ranging from 0.01 to 1.05 ng/g dw, the North Bohai coastal rivers lower than 0.54 ng/g dw (Wang et al, 2011) and the Pearl River in China (0.09e0.28 ng/g dw) (Bao et al, 2010). The highest concentrations of P PFAA (465.60 ng/g dw) and PFOA (456.20 ng/g dw) were found at site XQ5, which was located downstream close to the effluent from one fluorochemical facility that produced PTFE and other fluoropolymers with massive capacity.…”