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Archives of Environmental Contamination and Toxicology

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https://www.readbyqxmd.com/read/28528420/soil-or-dust-for-health-risk-assessment-studies-in-urban-environment
#1
M Gabarrón, A Faz, J A Acosta
To identify the best material (soil or dust) to be selected for health-risk assessment studies, road dust and urban soil from three cities with different population densities were collected, and size fractions were analysed for metal content (Pb, Zn, Cu, Cd, Cr, Co, and Ni). Results showed similar distribution of the size particles among cities, predominating fractions between 75 and 2000 μm in road dust and particles below 75 μm in soil. Metals were mainly bound to PM10 in both soil and road dust increasing the risk of adverse health effects, overall through inhalation exposure...
May 20, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28528419/a-risk-based-characterization-of-sediment-contamination-by-legacy-and-emergent-contaminants-of-concern-in-coastal-british-columbia-canada
#2
Carmen Morales-Caselles, Jean-Pierre W Desforges, Neil Dangerfield, Peter S Ross
Sediments have long been used to help describe pollution sources, contaminated sites, trends over time, and habitat quality for marine life. We collected surficial sediments from 12 sites at an average seawater depth of 25 m in three near-urban areas of the Salish Sea (British Columbia, Canada) to investigate habitat quality for marine life, including heavily contaminated killer whales. Samples were analyzed using high-resolution instrumentation for a wide variety of congeners of polychlorinated biphenyls (PCBs), polybrominated diphenylethers (PBDEs), hexabromocyclododecane (HBCDD), polybrominated biphenyls, polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans, organochlorine pesticides, and polychlorinated naphthalenes (PCNs)...
May 20, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28528418/spatial-distribution-and-temporal-trend-of-anthropogenic-organic-compounds-derived-from-the-2011-east-japan-earthquake
#3
Kaoruko Mizukawa, Yasuko Hirai, Hiroyuki Sakakibara, Satoshi Endo, Keiji Okuda, Hideshige Takada, Naoko Murakami-Sugihara, Kotaro Shirai, Hiroshi Ogawa
The tsunami caused by the Great East Japan Earthquake on March 11, 2011 disturbed coastal environments in the eastern Tohoku region in Japan. Numerous terrestrial materials, including anthropogenic organic compounds, were deposited in the coastal zone. To evaluate the impacts of the disaster, we analyzed PCBs, LABs, PAHs, and hopanes in mussels collected from 12 locations in the east of Tohoku during 2011-2015 (series A) by GC-ECD or GC-MS and compared them with results from mussels collected from 22 locations around Japan during 2001-2004 (series B)...
May 20, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28528417/sea-urchin-embryogenesis-as-bioindicators-of-marine-pollution-in-impact-areas-of-the-sea-of-japan-east-sea-and-the-sea-of-okhotsk
#4
Olga N Lukyanova, Elena V Zhuravel, Denis N Chulchekov, Andrey A Mazur
The embryogenesis of the sea urchin sand dollar Scaphechinus mirabilis was used as bioindicators of seawater quality from the impact areas of the Sea of Japan/East Sea (Peter the Great Bay) and the Sea of Okhotsk (northwestern shelf of Sakhalin Island and western shelf of Kamchatka Peninsula). Fertilization membrane formation, first cleavage, blastula formation, gastrulation, and 2-armed and 4-armed pluteus formation have been analyzed and a number of abnormalities were calculated. Number of embryogenesis anomalies in sand dollar larvae exposed to sea water from different stations in Peter the Great Bay corresponds to pollution level at each area...
May 20, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28528416/time-trends-of-persistent-organic-pollutants-in-benthic-and-pelagic-indicator-fishes-from-puget-sound-washington-usa
#5
James E West, Sandra M O'Neill, Gina M Ylitalo
We modeled temporal trends in polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), and dichlorodiphenyltrichloroethane and its metabolites (DDTs) in two indicator fish species representing benthic and pelagic habitats in Puget Sound, Washington, USA. English sole (Parophrys vetulus, benthic) index sites and larger-scale Pacific herring (Clupea pallasii, pelagic) foraging areas represented a wide range of possible contamination conditions, with sampling locations situated adjacent to watersheds exhibiting high, medium and low development...
May 20, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28528415/oxidative-stress-in-shellfish-sinonovacula-constricta-exposed-to-the-water-accommodated-fraction-of-zero-sulfur-diesel-oil-and-pinghu-crude-oil
#6
Mei Jiang, Lei Li, Yingren Li, Gongming Shen, Xinqiang Shen
This study investigated the oxidative stress of the water accommodated fraction (WAF) of zero sulfur diesel oil and Pinghu crude oil on Sinonovacula constricta, respectively. The oxidative stress of oil pollutants on organisms was measured by typical antioxidases, such as SOD, CAT, GST, and POD. Toxicity was quantitatively evaluated by combining IBR (integrated biomarker responses). Results demonstrated that different concentrations of oil caused different degrees of induction to the four antioxidases. Compared with the control group, all test groups presented enzyme induction or inhibition during exposure period...
May 20, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28528414/tissue-contaminant-burdens-in-san-francisco-estuary-white-sturgeon-acipenser-transmontanus-implications-for-population-recovery
#7
Deke T Gundersen, Steven C Zeug, Robert B Bringolf, Joseph Merz, Zachary Jackson, Molly A H Webb
The San Francisco Estuary (SFE) is heavily influenced by anthropogenic activities, including historic and chronic contaminant inputs. These contaminants can adversely affect SFE fish populations, particularly white sturgeon, because they are a benthic dwelling, long-lived species. We measured a suite of metals and organic contaminants in liver and gonad tissues of 25 male and 32 female white sturgeon as well as several physiological indicators of sturgeon health. Most sturgeon (68% of males and 83% of females) were estimated to be between 13 and 17 years of age...
May 20, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28528413/dissolved-platinum-concentrations-in-coastal-seawater-boso-to-sanriku-areas-japan
#8
Asami Suzuki Mashio, Hajime Obata, Toshitaka Gamo
Platinum, one of the rarest elements in the earth's crust, is now widely used in a range of products, such as catalytic converters in automobiles and anticancer drugs. Increasing use and dispersal of platinum has the potential to affect aquatic environments. Platinum concentrations in open ocean seawater have been found to be very low (approximately 0.2 pmol/L); however, Pt distributions and biogeochemical cycles in coastal areas are unknown. In this study, we investigated Pt concentrations in coastal waters between the Boso and Sanriku areas, Japan, after the 2011 tsunami...
May 20, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28528412/bioindicators-of-organochlorine-pesticides-in-the-sea-of-okhotsk-and-the-western-bering-sea
#9
Vasiliy Yu Tsygankov, Margarita D Boyarova, Olga N Lukyanova, Nadezhda K Khristoforova
Organochlorine pesticides (OCPs), such as HCHs and DDTs, are still used as pesticides in the Southern Hemisphere and can reach the North Pacific due to long range atmospheric transfer. Marine mammals (Pacific walrus Odobenus rosmarus divergens, gray whale Eschrichtius robustus), the seabirds (Pacific gull Larus schistisagus, crested auklet Aethia cristatella, auklet crumb Aethia pusilla, northern fulmar Fulmarus glacialis, and grey petrel Oceanodroma furcata) and Pacific salmon (pink Oncorhynchus gorbuscha, chum O...
May 20, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28528411/imposex-in-reishia-clavigera-as-an-indicator-to-assess-recovery-of-tbt-pollution-after-a-total-ban-in-south-korea
#10
Nam Sook Kim, Sang Hee Hong, Kyung-Hoon Shin, Won Joon Shim
The temporal changes in the frequency and degree of imposex and tributyltin (TBT) levels in gastropod (Reishia clavigera) were evaluated in Jinhae Bay, 5 and 10 years after the total ban on TBT usage in South Korea. The frequency and degree of imposex decreased significantly after the ban, accompanied by an increase in the female-to-male ratio. The TBT concentrations in R. clavigera also decreased significantly after the ban. There were good correlations between the TBT concentration in rock shell and both the degree of imposex and the female-to-male ratio...
May 20, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28528410/comparison-of-toxicities-of-metal-pyrithiones-including-their-degradation-compounds-and-organotin-antifouling-biocides-to-the-japanese-killifish-oryzias-latipes
#11
Madoka Ohji, Hiroya Harino
Japanese killifish Oryzias latipes were exposed to three levels (0, 1, and 10 µg l(-1)) of copper pyrithione (CuPT2), zinc pyrithione (ZnPT2), six of their degradation products, and the organotin compounds tributyltin (TBT) and triphenyltin (TPT) for 48 h at 20 °C. All individual fish exposed to 1 and 10 µg l(-1) of CuPT2 or 10 µg l(-1) of ZnPT2 were dead within 12 h, respectively, and at 24 h the survival rate of the fish exposed to 1 µg l(-1) of ZnPT2 was 50%. All fish exposed to 10 µg l(-1) of ZnPT2 showed morphological abnormalities in the form of vertebral deformity...
May 20, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28528409/polychlorinated-biphenyl-related-alterations-of-the-expression-of-essential-genes-in-harbour-seals-phoca-vitulina-from-coastal-sites-in-canada-and-the-united-states
#12
Marie Noël, Neil Dangerfield, Steve Jeffries, Dyanna Lambourn, Monique Lance, Caren Helbing, Michel Lebeuf, Peter S Ross
As long-lived marine mammals found throughout the temperate coastal waters of the North Pacific and Atlantic Oceans, harbour seals (Phoca vitulina) have become an invaluable sentinel of food-web contamination. Their relatively high trophic position predisposes harbour seals to the accumulation of harmful levels of persistent organic pollutants (POPs). We obtained skin/blubber biopsy samples from live-captured young harbour seals from various sites in the northeastern Pacific (British Columbia, Canada, and Washington State, USA) as well as the northwestern Atlantic (Newfoundland and Quebec, Canada)...
May 20, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28528408/the-glaucous-winged-gull-larus-glaucescens-as-an-indicator-of-chemical-contaminants-in-the-canadian-pacific-marine-environment-evidence-from-stable-isotopes
#13
M L Davis, J E Elliott, T D Williams
The Glaucous-winged gull (Larus glaucescens) has been selected by Environment Canada as a marine indicator species for long-term monitoring of persistent contaminants in the Canadian Pacific. However, the indicator value of this species depends on its trophic level and proportion of marine prey in its diet. Eggs, used as the monitoring medium, are produced entirely from maternal resources and knowledge of adult diet before and during egg production is critical to interpreting contaminant levels. Due to a lack of recent and reliable dietary ecology work, we examined the diet of breeding Glaucous-winged gulls through carbon (δ(13)C) and nitrogen (δ(15)N) stable isotope analysis at three colonies on the Pacific coast...
May 20, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28528407/effects-of-feeding-strategy-sediment-characteristics-and-chemical-properties-on-polychlorinated-biphenyl-and-polybrominated-diphenyl-ether-bioaccumulation-from-marine-sediments-in-two-invertebrates
#14
H Frouin, P Jackman, N D Dangerfield, P S Ross
Shellfish and sediment invertebrates have been widely used to assess pollution trends over space and time in coastal environments around the world. However, few studies have compared the bioaccumulation potential of different test species over a range of sediment-contaminant concentrations and profiles. The bioavailability of sediment-related contaminants was evaluated using sediments collected from sites (n = 12) throughout the Salish Sea, British Columbia, Canada. Two benthic marine invertebrates-the Baltic clam Macoma balthica and the polychaete worm Neanthes arenaceodentata-were exposed for 28 days in a controlled environment to these field-collected coastal sediments...
May 20, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28526941/urinary-cadmium-and-cotinine-levels-and-hair-mercury-levels-in-czech-children-and-their-mothers-within-the-framework-of-the-cophes-democophes-projects
#15
Kateřina Forysová, Anna Pinkr-Grafnetterová, Marek Malý, Andrea Krsková, Jaroslav Mráz, Lucie Kašparová, Mája Čejchanová, Lenka Sochorová, Sylva Rödlová, Milena Černá
The COPHES/DEMOCOPHES twin project was performed in 2011-2012 in 17 European countries to harmonize all steps of the human biomonitoring survey. Urinary cadmium, cotinine, phthalate metabolites, and hair mercury were measured in children (N = 120, 6-11 years) and their mothers of reproductive age, living in urban or rural areas. Cadmium in mothers' and children's urine was detected at a geometric mean (GM) concentration 0.227 and 0.109 μg/L, respectively; 95th percentile (P95) was 0.655 and 0.280 μg/L in mothers and children, respectively...
May 19, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28510780/design-and-testing-of-a-new-diatom-based-index-for-heavy-metal-pollution
#16
M R Fernández, G Martín, J Corzo, A de la Linde, E García, M López, M Sousa
The Tinto and Odiel river basins (SW Spain) are known worldwide for their unique water characteristics. Such uniqueness is a consequence of their flow through the Iberian Pyrite Belt (an area rich in metal sulphides) and the mining activities in the basins. A process of sulphide oxidation occurs in this region, which acidifies the water and increases the amount of heavy metals in it. As a result, the rivers suffer the so-called "acid mine drainage" (AMD). Traditional biotic diatom-based indexes (IPS, IBD, EPI-D, etc...
May 16, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28497299/ecotoxicological-and-health-risk-assessment-of-polycyclic-aromatic-hydrocarbons-pahs-in-short-neck-clam-paphia-undulata-and-contaminated-sediments-in-malacca-strait-malaysia
#17
Mehrzad Keshavarzifard, Mohamad Pauzi Zakaria, Reza Sharifi
The distribution, sources, and human health risk assessment of polycyclic aromatic hydrocarbons (PAHs) in surface sediment and the edible tissue of short-neck clam (Paphia undulata) from mudflat ecosystem in the west coast of Malaysia were investigated. The concentrations of ∑16 PAHs varied from 347.05 to 6207.5 and 179.32 to 1657.5 ng g(-1) in sediment and short-neck clam samples, respectively. The calculations of mean PEL quotients (mean-PELQs) showed that the ecological risk of PAHs in the sediment samples was low to moderate-high level, whereas the total health risk through ingestion and dermal contact was considerably high...
May 11, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28488006/ingestion-of-a-single-2-3%C3%A2-mm-lead-pellet-by-laying-roller-pigeon-hens-reduces-egg-size-and-adversely-affects-f1-generation-hatchlings
#18
Robert J Williams, Lawrence V Tannenbaum, Susan M Williams, Steven D Holladay, Richard C Tuckfield, Ajay Sharma, Danny Joe Humphrey, Robert M Gogal
Many aquatic and terrestrial avian species inadvertently ingest lead (Pb) in the form of spent or fragmented ammunition, mistaking it for food or grit. Previous studies in our laboratory have shown that ingestion of even a single 45-mg pellet can significantly increase blood-Pb levels and significantly inhibit the enzyme delta aminolevulinic-acid dehydratase (δ-ALAD) for a period of greater than 4 weeks. In the current study, proven breeder pairs of domestic Roller pigeons were housed in individual cages...
May 9, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28470349/cadmium-compartmentalization-in-the-pulmonate-snail-lymnaea-stagnalis-improving-our-understanding-of-exposure
#19
Evelyn G Reátegui-Zirena, Amanda D French, David M Klein, Christopher J Salice
In ecotoxicology, analytical compartmentalization analysis can be used to better understand metal sequestration and detoxification. Metals are typically found in two main compartments, biologically detoxified metal (BDM) and metal sensitive fractions (MSF). The purpose of this study was to analyze the subcellular distribution of cadmium (Cd) in Lymnaea stagnalis. Adult snails were exposed to three concentrations of Cd for 56 days as part of a global ring test for L. stagnalis. At the end of the 56-day exposure, organisms were separated in two sections (viscera and foot)...
May 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28466253/long-term-oil-pollution-and-in-situ-microbial-response-of-groundwater-in-northwest-china
#20
Yujiao Sun, Sidan Lu, Xiaohui Zhao, Aizhong Ding, Lei Wang
Potential threats exist where groundwater is polluted by high concentrations of oil compounds (980.20 mg L(-1) the highest TPHs). An abandoned petrochemical plant in Lanzhou City, where long-term petrochemical products leakage contaminated the groundwater, was used as a field site in this study. To determine the extent of pollution and find an effective solution, chemical techniques combined with molecular biological techniques were used to survey the migration and decomposition of pollutants. Moreover, Illumina Sequencing was employed to reveal the microbial changes of different sites...
May 2017: Archives of Environmental Contamination and Toxicology
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