Are cockroaches reliable bioindicators of persistent organic pollutant contamination of indoor environments?

•Kow values are crucial to biota-dust accumulation factors of POPs in cockroaches.•Halogenated POPs have higher biota-dust accumulation factors in cockroaches.•Molecular size is one of important factors affecting the bioaccumulation of POPs.•Cockroaches are reliable bioindicators of POPs pollution o...

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Bibliographic Details
Published in:Ecological indicators 2015-03, Vol.50, p.44-49
Main Authors: Wang, Yan-Bing, Sojinu, Samuel O., Sun, Jian-Lin, Ni, Hong-Gang, Zeng, Hui, Zou, Mengyao
Format: Article
Language:English
Subjects:
Bioindicator
Biological monitoring
Cockroaches
Contamination
Halogenated
Indoor
Indoor environments
Indoor pollution
Pollutants
Polybrominated diphenyl ethers
Polycyclic aromatic hydrocarbons
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Summary:•Kow values are crucial to biota-dust accumulation factors of POPs in cockroaches.•Halogenated POPs have higher biota-dust accumulation factors in cockroaches.•Molecular size is one of important factors affecting the bioaccumulation of POPs.•Cockroaches are reliable bioindicators of POPs pollution of indoor environments. We measured the concentrations of selected persistent organic pollutants (POPs) such as parent and halogenated polycyclic aromatic hydrocarbons (PAHs and HPAHs) and polybrominated diphenyl ethers (PBDEs) in indoor dust (ID) and indoor cockroach samples collected from Shenzhen, South China. Biota-dust accumulation factors (BDAFs) were computed and utilized to quantify targeted pollutant bioaccumulation in ID and cockroaches. Generally, halogenated compounds have higher BDAFs when compared to non-halogenated compounds. There are significant differences (p0.5) suggesting no significant relationship exists for PAHs between ID and cockroaches. In contrast, significant correlations exist for halogenated POPs (HPAH and PBDE) between ID and cockroaches (correlation coefficients >0.94, p
ISSN:1470-160X
1872-7034
DOI:10.1016/j.ecolind.2014.10.022