Environmental monitoring for PCB and heavy metals in the vicinity of a chemical waste disposal facility - I

Eduljee, G.H.; Badsha, K.S.; Price, Laura L.

doi:10.1016/0045-6535(85)90157-2

Cited by 13 publications

(4 citation statements)

References 15 publications

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“…Garty et al (17,18) used lichens as indicators of atmospheric PCB, but concentrations were never correlated with air data. Bush et al (19) attempted to relate air concentrations of PCB to plant tissue levels and concluded that PCB in plants were not related to air concentrations but instead were translocated from soil, the opposite of findings reported in other studies (11)(12)(13)(14). This odd conclusion may have resulted from a detection limit for air samples that was more than 1 order of magnitude greater than PCB vapor concentrations often observed in the atmosphere (1,20).…”

Section: Introductionmentioning

confidence: 98%

“…The global distribution of atmospheric PCB suggests that a relationship may exist between the concentration of these compounds in the air at a given location and the amount observed in plants living there. For example, Meredith and Hites (5) observed high concentrations of certain PCB congeners in tree bark near a Superfund PCB dump site and lower values in trees 14 km away. This finding suggested that there may be a relationship between PCB concentrations in tree bark and PCB concentrations in air.…”

Section: Introductionmentioning

confidence: 99%

“…Tree bark has been used to assess pollutants in air, including metals (6,7), acid gasses (8,9), and radioisotopes (10). Plant leaves have been found to contain PCB absorbed from atmospheric vapors (11)(12)(13)(14). Translocation of PCB from soils to leaves through the root and vascular systems of plants contributes little to the PCB found in foliage, even in plants grown in soil inoculated with PCB (15).…”

Section: Introductionmentioning

confidence: 99%

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Polychlorinated biphenyls in tree bark

Hermanson¹,

Hites²

1990

Environ. Sci. Technol.

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Polychlorinated biphenyl (PCB) concentrations in tree bark vary with proximity to a source. Higher total PCB bark/air ratios in areas near contamination show that bark may retain PCB from prior periods of high atmospheric concentrations. Bark is enriched in the more chlorinated PCB homologues relative to air. Congener-specific analyses show that, when compared with air, bark favorably accumulates the less volatile congeners. Lipophilicity is not a good indicator of bark PCB concentrations, but vapor pressure is.

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Polychlorinated biphenyls in tree bark

Hermanson¹,

Hites²

1990

Environ. Sci. Technol.

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“…It was evident here that Cd and Zn recorded the highest factors in surface water and greater percentages of inputs are linked to anthropogenic sources. The primary anthropogenic sources of zinc in the environment (air, water, soil) are related to mining and metallurgic operations involving zinc and use of commercial products containing zinc (Eduljee et al, 1986). Domestic waste, shipyard, automotive and industrial effluent also releases good amount of Zn into the aquatic environment (Garcia and Millan, 1998).…”

Section: Cd>32mentioning

confidence: 99%

Seasonal variation of enrichment and contamination of heavy metals in the surface water of Qua Iboe River Estuary and adjoining creeks, South-South Nigeria

Dan¹,

Umoh²,

Osabor³

2014

J. Oceanogr. Mar. Sci.

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The wet season mean concentration of heavy metals were higher than the dry season. Concentration data were processed using Pearson correlation matrix to identify the inter-relationships between physicochemical parameters as well as the sources of heavy metals. The results showed that salinity, pH and temperature among others played a significant role in the adsorption/desorption and dissolution of heavy metals in the surface water. The Enrichment factor (EF) calculated during the wet season in surface water ranged from 0.2 to 2.9 while the EF calculated during the dry season ranged from 0.2 to 1.9. During wet season, Cd, Cu, Fe, Pb and Zn showed minor surface enrichments while Cr and Ni showed no enrichment. During dry season, Cd, Fe and Zn were moderately enriched in surface water while Cr, Cu, Pb and Ni were not enriched. Surface enrichment was attributed to atmospheric deposition, released of sediment bound metals to the surface, dissolution/erosion of coastal sediments as well as anthropogenic input. The computed degree of contamination indicated that the river system was moderately contaminated during dry season but highly contaminated during wet season. The implication is that during flooding which is consequent upon climate change, there will be higher degree of contamination of Qua Iboe River estuary and adjoining creeks.

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Simultaneous decontamination of cross-polluted soils with heavy metals and PCBs using a nano-metallic Ca/CaO dispersion mixture

Mallampati

Mitoma

Okuda

et al. 2014

Environ Sci Pollut Res

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In the present work, we investigated the use of nano-metallic calcium (Ca) and calcium oxide (CaO) dispersion mixture for the simultaneous remediation of contaminated soils with both heavy metals (As, Cd, Cr, and Pb) and polychlorinated biphenyls (PCBs). Regardless of soil moisture content, nano-metallic Ca/CaO dispersion mixture achieved about 95-99% of heavy metal immobilization by a simple grinding process. During the same treatment, reasonable PCB hydrodechlorination efficiencies were obtained (up to 97%), though higher hydrodechlorination efficiency by preliminary drying of soil was observed.

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Environmental monitoring for PCB and heavy metals in the vicinity of a chemical waste disposal facility - I

Cited by 13 publications

References 15 publications

Polychlorinated biphenyls in tree bark

Polychlorinated biphenyls in tree bark

Seasonal variation of enrichment and contamination of heavy metals in the surface water of Qua Iboe River Estuary and adjoining creeks, South-South Nigeria

Simultaneous decontamination of cross-polluted soils with heavy metals and PCBs using a nano-metallic Ca/CaO dispersion mixture

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