Organohalogen contamination in passerine birds from three metropolises in China: Geographical variation and its implication for anthropogenic effects on urban environments

Characterization of anthropogenic impacts in a large urban center by examining the spatial distribution of halogenated flame retardants

“…Approximately 145 million pieces of obsolete electronic/electrical devices were processed in Qingyuan using mostly primitive techniques in 2002 (Martin et al, 2004). Therefore, it is not unexpected that samples of air, dust, sediment and birds collected from the PRD and surrounding areas contained high levels of HFRs Luo et al, 2009bLuo et al, , 2014Peng et al, 2015;Shi et al, 2009;Sun et al, 2014;Yu et al, 2014). These previous findings hinted the feasibility of utilizing HFRs to assess anthropogenic impacts on a regional scale in the PRD.…”

Accumulation of Dechlorane Plus flame retardant in terrestrial passerines from a nature reserve in South China: The influences of biological and chemical variables

“…No information is available on ∑DP levels in the other four species investigated in the present study. Previous studies reported ∑DP levels in the muscle tissue of two terrestrial passerine birds, the Eurasian tree sparrow (Passer montanus) and the common magpie (Pica pica), from urban centers in China, with median concentrations of 13 and 4.9 ng/g lw in the Eurasian tree sparrow from Guangzhou and Beijing and 4.4 ng/g lw in the common magpie from Wuhan (Yu et al, , 2014. Some biological variables such as trophic level and feeding ecology appear to influence the accumulation of PHCs in wildlife (Borgå et al, 2004).…”

Contaminant sources, gastrointestinal absorption, and tissue distribution of organohalogenated pollutants in chicken from an e-waste site

“…× 0.25 mm, J&W Scientific) installed on an Agilent 6890 GC-5975 MS system equipped with electron impact (EI) ion source. The instrument analysis details were as described previously (Luo et al, 2009;Yu et al, 2014). BDEs 171 and 180 were only detected in 0-33% of samples of different chicken tissues (nd-88 and nd-217 ng/g lipid weight for BDEs 171 and 180), so the two PBDE congeners were not included in PBDE levels in the present study.…”

“…Chicken tissues were extracted, cleaned, and analyzed according to previously published methods (Luo et al, 2009;Yu et al, 2014) with minor modifications. Briefly, after grinding with an agate mortar and spiking with surrogate standards (CBs 30,65,and 204;BDEs 77,181,205,, approximately 2 g of the lyophilized samples was Soxhlet extracted with 190 mL hexane/acetone (1/1 v/v) for 48 h. An aliquot of the extract was used to determine the lipid content by gravimetric analysis; the rest of the extract was subjected to gelpermeation chromatography in a column (50 cm × 2.5 cm i.d.)…”