Reviews of Environmental Contamination and Toxicology

Whitacre, David M.

doi:10.1007/978-1-4419-1157-5

Cited by 86 publications

(88 citation statements)

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“…Few studies have compared the effectiveness of street cleaning technologies to remove street dust (Amato et al, 2010; Kang et al, 2009). A number of different street cleaning technologies and practices for improvement of air quality are available to manage and collect street dust, including flushing, mechanical broom, vacuum, and regenerative air systems (Whitacre, 2016). Understanding the levels, distribution, and sources of PTEs and PAHs in street dust can aid environmental managers and facilitate the supervision of air quality.…”

Section: Resultsmentioning

confidence: 99%

Contamination Level, Source Identification and Risk Assessment of Potentially Toxic Elements (PTEs) and Polycyclic Aromatic Hydrocarbons (PAHs) in Street Dust of an Important Commercial Center in Iran

Keshavarzi

Abbasi

Moore

et al. 2018

Environmental Management

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The geochemical nature and health hazards of potentially toxic elements (PTEs) and polycyclic aromatic hydrocarbons (PAHs) in the street dust of Bandar Abbas, Iran, are investigated in this study based on 27 street dust samples. Mean concentrations of Cu, Pb, Zn, As, Sb, and Hg revealed elevated concentrations as compared to the world soil average. Calculated enrichment factors (EFs) indicated that there is very high contamination in dust particles owing to anthropogenic emissions. Two main sources of PTEs are traffic emissions (Cu, Pb, Zn, Co, Mn, Fe, As, Cd, Sb, and Hg) and resuspended soil particles (Al, Ti, Ni, and Cr). Statistical analysis shows that Al, Mn, Ni, Ti, Cr, Fe, and Co are geogenic, whereas PAHs are mainly derived from traffic emissions. Values of incremental lifetime cancer risk (ILCR), as derived from a modified model of the United State Environmental Protection Agency (USEPA), indicate that Bandar Abbas residents are potentially exposed to high cancer risk, especially via dust ingestion and dermal contact, whereas the level of hazard index (HI), hazard quotients (HQ), and cancer risk associated with exposure to the elements in street dust fall lower than threshold values representative of health risks.

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Section: Resultsmentioning

confidence: 99%

Contamination Level, Source Identification and Risk Assessment of Potentially Toxic Elements (PTEs) and Polycyclic Aromatic Hydrocarbons (PAHs) in Street Dust of an Important Commercial Center in Iran

Keshavarzi

Abbasi

Moore

et al. 2018

Environmental Management

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“…The concentrations of the 20 OP pesticides in human blood serum samples were consistent with the reports about the usage of these pesticides in China. 48 Furthermore, OP pesticides also have antiandrogenic endocrine disrupting activities and immunotoxicity. 47 The concentration of monocrotophos in blood serum showed a 10-fold lower level in the Chinese than in the Indians.…”

Section: Methods Applicationmentioning

confidence: 99%

Determination of twenty organophosphorus pesticides in blood serum by gas chromatography-tandem mass spectrometry

et al. 2016

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A large number of organophosphorus (OP) pesticides are used globally, and the effects of OP pesticides on human health have attracted attention. However, methods focusing on the determination of various OP pesticides in human blood serum are still scarce, and the exposure level of various OP pesticides in humans remains largely unknown. We have developed a method for the quantification of 20 OP pesticides in human blood serum simultaneously. The determination was performed using solid-phase extraction with a small blood serum sample volume (200 mL) and gas chromatographic analysis with triple quadrupole mass spectrometry (GC-MS/MS). Among the 20 pesticides, limits of detection ranged from 0.01 to 2.70 ng mL À1 ; limits of quantitation ranged from 0.05 to 9.00 ng mL À1 ; linearity ranged from 0.02 to 135.00 ng mL À1 ; recoveries ranged from 90 to 120%; intra-day and inter-day relative standard deviations were mostly less than 15% at 2.70 and 27.00 ng mL À1 in the spiked blood serum samples. This method was further used for the determination of OP pesticides in 160 human blood serum samples, which generated the first-hand data regarding the OP pesticide exposure profile in Chinese adults without occupational exposure.

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“…Narrowleaf cattail (T. angustifolia) is one of the most common plants in constructed wetlands used for wastewater treatment. Earlier studies have shown that cattails' endophytic bacteria can assimilate nutrients (Whitacre, 2012), heavy metals (Demirezend and Aksoy, 2004) and phytoremediate eutrophic water bodies (Cristina et al, 2009) in the constructed wetland or semi-natural treatment wetland. But no study has investigated the effect of reclaimed water on the rhizosphere bacterial community of T. angustifolia in urbanized riverside wetland.…”

Section: Introductionmentioning

confidence: 99%

Effect of reclaimed water effluent on bacterial community structure in the Typha angustifolia L. rhizosphere soil of urbanized riverside wetland, China

Huang

Xiong

Liu

et al. 2017

Journal of Environmental Sciences

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In order to evaluate the impact of reclaimed water on the ecology of bacterial communities in the Typha angustifolia L. rhizosphere soil, bacterial community structure was investigated using a combination of terminal restriction fragment length polymorphism and 16S rRNA gene clone library. The results revealed significant spatial variation of bacterial communities along the river from upstream and downstream. For example, a higher relative abundance of γ-Proteobacteria, Firmicutes, Chloroflexi and a lower proportion of β-Proteobacteria and ε-Proteobacteria was detected at the downstream site compared to the upstream site. Additionally, with an increase of the reclaimed water interference intensity, the rhizosphere bacterial community showed a decrease in taxon richness, evenness and diversity. The relative abundance of bacteria closely related to the resistant of heavy-metal was markedly increased, while the bacteria related for carbon/nitrogen/phosphorus/sulfur cycling wasn't strikingly changed. Besides that, the pathogenic bacteria markedly increased in the downstream rhizosphere soil since reclaimed water supplement, while the possible plant growth-promoting rhizobacteria obviously reduced in the downstream sediment.Together these data suggest cause and effect between reclaimed water input into the wetland, shift in bacterial communities through habitat change, and alteration of capacity for biogeochemical cycling of contaminants.

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Reviews of Environmental Contamination and Toxicology

Cited by 86 publications

References 0 publications

Contamination Level, Source Identification and Risk Assessment of Potentially Toxic Elements (PTEs) and Polycyclic Aromatic Hydrocarbons (PAHs) in Street Dust of an Important Commercial Center in Iran

Contamination Level, Source Identification and Risk Assessment of Potentially Toxic Elements (PTEs) and Polycyclic Aromatic Hydrocarbons (PAHs) in Street Dust of an Important Commercial Center in Iran

Determination of twenty organophosphorus pesticides in blood serum by gas chromatography-tandem mass spectrometry

Effect of reclaimed water effluent on bacterial community structure in the Typha angustifolia L. rhizosphere soil of urbanized riverside wetland, China

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