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Archives of Environmental Contamination and Toxicology

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https://www.readbyqxmd.com/read/30430193/analysis-of-pm10-and-pm2-5-concentrations-in-an-urban-atmosphere-in-northern-spain
#1
M Ángeles García, M Luisa Sánchez, Adrián de Los Ríos, Isidro A Pérez, Nuria Pardo, Beatriz Fernández-Duque
This work analyses levels of particles PM10 and PM2.5 recorded at four air-quality monitoring stations located in the urban area of Valladolid (Spain) during 2015-2016. To achieve this, the evolution of particle concentrations at different time scales was determined. Average concentrations ranged from 15.3 to 17.6 µg m-3 for PM10 and between 8.9 and 14.8 µg m-3 for PM2.5. The highest monthly means were recorded in autumn and winter. The difference between mean concentrations at weekends and on weekdays for PM10 was around 3 µg m-3 at most of the measuring stations and was 1 µg m-3 for PM2...
November 14, 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/30413865/response-to-comment-on-estimating-the-bioconcentration-factors-of-hydrophobic-organic-chemicals-from-biotransformation-rates-using-rainbow-trout-hepatocytes
#2
LETTER
Frank A P C Gobas, Yung-Shan Lee, Leslie J Saunders, Margo M Moore, Jennifer J Trowell, Christopher J Kennedy
No abstract text is available yet for this article.
November 9, 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/30390119/pharmaceutical-and-personal-care-products-in-surface-waters-from-the-inner-city-of-beijing-china-influence-of-hospitals-and-reclaimed-water-irrigation
#3
Guo-Hui Lu, Hai-Tao Piao, Nan Gai, Peng-Wei Shao, Yu Zheng, Xing-Chun Jiao, Zhu Rao, Yong-Liang Yang
Surface waters from five districts in the inner city of Beijing were collected for analysis of 43 target compounds of pharmaceuticals and personal care products (PPCPs) to understand the spatial distribution patterns of different groups of PPCPs in the central urban area of a metropolitan city characterized by many hospitals and public parks. The total concentrations of PPCPs showed large spatial variability, ranging from 71.1 to 2400 ng/L. The x-ray contrast medium iopromide was the compound with the highest concentrations...
November 2, 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/30361943/experimental-and-theoretical-determination-of-henry-s-law-constant-for-polychlorinated-biphenyls-its-dependence-on-solubility-and-degree-of-chlorination
#4
R C Bhangare, P Y Ajmal, T D Rathod, M Tiwari, S K Sahu
The fate of a pollutant in the environment depends on its interaction with the surroundings. Henry's law constant (HLC) is one of the important properties useful for assessment of environmental risk and estimation of mass transfer of the pollutant between water and air. Estimation of HLC is relatively a difficult task for many of the organic pollutants due to their very low aqueous solubility. People have attempted the measurement of HLC for persistent organic pollutants, such as polychlorinated biphenyls (PCBs), but due to the difficulty in estimation, there is a variation of approximately 2-3 orders of magnitude in reported values of HLC for PCBs in the literature...
October 25, 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/30361942/investigation-of-spatial-distributions-and-temporal-trends-of-triclosan-in-canadian-surface-waters
#5
Benoit Lalonde, Christine Garron, Alice Dove, John Struger, Kristina Farmer, Mark Sekela, Melissa Gledhill, Sean Backus
Triclosan is widely used in personal care products (skin creams, toothpastes, soaps, deodorants, body spray) and cleaning products (dishwashing detergent and all-purpose cleaners) (Halden in Environ Sci Technol 48:3603-3611, 2014). In 2001, it was selected for screening-level risk assessment under the Canadian Environmental Protection Act (HC and EC in Preliminary assessment. Triclosan. Chemical abstracts Service Number 3380-34-5, 2012. http://www.ec.gc.ca/ese-ees/default.asp?lang=En&n=6EF68BEC-1 ), and its physicochemical and toxicological characteristics indicate that there may be a risk to aquatic environments due to releases of the chemical in Canada...
October 25, 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/30349930/chironomus-sancticaroli-diptera-chironomidae-as-a-sensitive-tropical-test-species-in-laboratory-bioassays-evaluating-metals-copper-and-cadmium-and-field-testing
#6
Carolina Buso Dornfeld, Suzelei Rodgher, Rogério Galante Negri, Evaldo Luiz Gaeta Espíndola, Michiel A Daam
Despite that chironomids are the most widely used benthic insect test species worldwide, little research has been conducted so far with tropical chironomid representatives. This study was designed to evaluate the indigenous midge Chironomus sancticaroli as a candidate test species for use in tropical toxicity assessments. To this end, laboratory water-only toxicity tests were conducted evaluating copper and cadmium. Obtained lethal concentration values were overall comparable or lower than those reported for other chironomids, including those most commonly used in temperate regions (C...
October 22, 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/30310951/source-apportionment-of-pm-10-over-three-tropical-urban-atmospheres-at-indo-gangetic-plain-of-india-an-approach-using-different-receptor-models
#7
Srishti Jain, Sudhir Kumar Sharma, Manoj Kumar Srivastava, Abhijit Chaterjee, Rajeev Kumar Singh, Mohit Saxena, Tuhin Kumar Mandal
The present work is the ensuing part of the study on spatial and temporal variations in chemical characteristics of PM10 (particulate matter with aerodynamic diameter ≤ 10 μm) over Indo Gangetic Plain (IGP) of India. It focuses on the apportionment of PM10 sources with the application of different receptor models, i.e., principal component analysis with absolute principal component scores (PCA-APCS), UNMIX, and positive matrix factorization (PMF) on the same chemical species of PM10 . The main objective of this study is to perform the comparative analysis of the models, obtained mutually validated outputs and more robust results...
October 11, 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/30310950/pahs-accumulations-in-plant-leaves-around-coal-fired-power-plant-and-identification-of-their-potential-use-as-bioindicators
#8
Qin Yang, Tianyi Luo, Jianghong Yang, Huaguo Chen
The purpose of this study was to investigate polycyclic aromatic hydrocarbons (PAHs) accumulation in leaves of different plant species growing in the neighborhood of coal-fired power plant (CPP) and to identify potential bioindicators for PAHs pollution monitoring. The study was performed in 8 sites in the surrounding areas of CPP. PAHs concentrations in leaves of 21 plant species growing within 1 km of CPP ranged from 0.043 to 4.52 µg g-1 . A higher mean concentration of PAHs was found in leaves of perennial herbs and shrubs compared with annual herbs and trees...
October 11, 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/30310949/historical-pollution-of-an-urban-watershed-based-in-geochemical-geoacumulation-and-erod-activity-in-plhc-1-analyses-in-sediment-cores
#9
L M Vieira, J Rizzi, E V do Couto, D C Souza, P A L Ferreira, R Figueira, S Froehner
In the present study, the environmental changes over the past 100 years in the Cambé River watershed in Southern Brazil were investigated. For this, a sediment core was collected to examine the distribution of metals, polycyclic aromatic hydrocarbons (PAHs), and ecotoxicological markers. The core corresponds from 1914 to 2012, which was obtained by the decay of 210 Pb. Changes in the study area also were examined by: Geoaccumulation index (Igeo) and enrichment factor (EF), sediment quality guidelines (SGQs), and ethoxyresorufin-O-deethylase (EROD) activity in Poeciliopsis lucida hepatocellular carcinoma (PLHC-1) cells line...
October 11, 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/30298356/evaluation-of-new-diagnostic-ratios-of-naphthalenes-and-fluorenes-by-identifying-severely-weathered-oils-collected-in-laboratory-simulations-and-coastal-weathering-experiments
#10
Bin Han, Zhuanling Song, Qian Li, Li Zheng
The composition and physical properties of spilled oil have great changes during the seriously weathering process. It brings great difficulties to the source identification of oil spill. So, the stable and trustworthy diagnostic ratios (DRs) for accurate identification of severely weathered spilled oils are very important. The explosion of Sinopec pipeline happened on November 22, 2013 at Qingdao, China. Local beaches at Jiaozhou Bay were polluted by spilled oils. We have collected original spilled oil samples from an area free from human interference near the oil leakage point after the accident...
October 8, 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/30291401/atmospheric-pm-2-5-bound-polycyclic-aromatic-hydrocarbons-pahs-in-guiyang-city-southwest-china-concentration-seasonal-variation-sources-and-health-risk-assessment
#11
Xuelu Fan, Zhuo Chen, Longchao Liang, Guangle Qiu
The polycyclic aromatic hydrocarbons (PAHs) bound to fine particulate matter (PM2.5 ) can cause long-term adverse health consequences and are a public concern. A total of 144 PM2.5 -bound PAHs samples collected from Guiyang City, a typical plateau montane area in southwest China, from September 2012 to August 2013 were investigated to clarify their concentration, distribution, and potential sources. The health exposure risk also was evaluated. The samplers equipped with 90-mm glass fibre filters were operated at a flow rate of 100 L min-1 for 24 h...
October 5, 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/30259144/concentrations-sources-and-teq-of-pcdd-fs-in-sediments-from-the-liaohe-river-protected-areas
#12
Xin Ke, Yifang Qi, Qinghua Bao, Haijun Zhang
A preliminary study was conducted to examine the contamination of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in surface sediments collected from the Liaohe River. The contamination levels of PCDD/Fs ranged from 317.3 to 509.3 pg/g dw. According to the calculated WHO-TEQ (Toxic Equivalent Quantity of World Health Organization), the range of PCDD/Fs is 13.87-40.88 pg/g dw. A principal component analysis and a cluster analysis suggested that PCDD/Fs in the sediments were mainly from gasoline/diesel vehicle emissions and solid waste incineration...
September 27, 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/30259080/distribution-source-apportionment-and-risk-assessment-of-polycyclic-aromatic-hydrocarbons-pahs-in-the-surficial-sediments-from-the-coastal-areas-of-bangladesh
#13
Md Habibullah-Al-Mamun, Md Kawser Ahmed, Anwar Hossain, Shigeki Masunaga
The surficial sediments were collected in winter and summer (2015) from the coastal areas of Bangladesh and analyzed for 16 USEPA priority polycyclic aromatic hydrocarbons (PAHs). The total concentration of PAHs (∑PAHs) were 349.8-11,058.8 and 199.9-17,089.1 ng/g dry weight (dw) in winter and summer, respectively. Sediements from the areas with recent urbanization and industrialization (Chittagong, Cox's Bazar, and Sundarbans) were more contaminated with PAHs than the unindustrialized area (Meghna Estuary)...
September 26, 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/30259079/bioaccumulation-of-methyl-siloxanes-in-common-carp-cyprinus-carpio-and-in-an-estuarine-food-web-in-northeastern-china
#14
Xiaohong Xue, Hongliang Jia, Jingchuan Xue
Despite the high production volume and widespread use of methyl siloxanes, limited studies have been conducted to investigate the bioconcentration, biomagnification, and trophic magnification potentials of these substances. In the present study, bioconcentration factors (BCFs) of methyl siloxanes were determined with common carp exposed at environmental relevant levels for 32 days. BCF of octamethylcyclotetrasiloxane (D4 ) was estimated as 6197 L/Kg, indicating strong bioconcentration potential in the common carp...
September 26, 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/30259078/lead-and-cadmium-content-in-grass-growing-near-an-expressway
#15
Kazimierz Jankowski, Elżbieta Malinowska, Grażyna A Ciepiela, Jolanta Jankowska, Beata Wiśniewska-Kadżajan, Jacek Sosnowski
The purpose of the study was to evaluate the effect of distance from a road on lead and cadmium content in grass species near an expressway and to assess bioaccumulation of these elements by morphological parts of the plants. The material for the research was the following grass species in their flowering stage: Dactylis glomerata, Arrenatherum elatius, and Alopecurus pratensis. Plant samples were collected along the international E30 road, the ring-road of Siedlce, in May 2015. A 9-km road section was examined with samples collected on both sides, covering a stretch of 700 m, at the following distances from the edge of the road: 1, 5, 10, and 15 m...
September 26, 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/30259077/field-assessment-of-colorado-pikeminnow-exposure-to-mercury-within-its-designated-critical-habitat-in-colorado-utah-and-new-mexico
#16
Barbara C Osmundson, Joel D Lusk
Mercury contamination in freshwater fish is widespread across North America, including the western United States. Atmospheric mercury from both natural and manmade emissions deposits into watersheds and, through methylation and biomagnification, accumulates in aquatic food webs. Highest mercury concentrations are found in predatory fish. The endangered Colorado pikeminnow (Ptychocheilus lucius) is a long-lived, top-level piscivore endemic to the Colorado River basin. Mercury exposure to Colorado pikeminnow and another native fish species, the roundtail chub (Gila robusta), was assessed by analyzing muscle tissues collected using a nonlethal technique...
September 26, 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/30255342/a-comparative-assessment-of-the-aquatic-toxicity-of-corexit-9500-to-marine-organisms
#17
B S Echols, C J Langdon, W A Stubblefield, G M Rand, P R Gardinali
The use of chemical dispersants during oil spill responses has long been controversial. During the Deepwater Horizon (DWH) oil spill, 1.8 million gallons of dispersant, mainly Corexit 9500, were applied in offshore waters to mitigate the human health and coastal environmental impact of surface oil contamination. To evaluate the potential impact of the dispersant on marine life, 18 species, representing important ecological and commercial taxa, were tested using low-energy, dispersant-only water accommodated fractions (WAFs) of Corexit 9500 and standard acute toxicity test methods...
September 25, 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/30244305/organohalogenated-contaminants-ohcs-in-surface-sediments-and-water-of-east-dongting-lake-and-hong-lake-china
#18
Liangfu Wei, Ababo Workineh Tadesse, Jun Wang
East Dongting Lake and Hong Lake are two typical lakes in the middle watershed of the Yangtze River, China. The differences in the hydrological condition and human activities of the region may result in the differences in concentrations, distribution, and sources of contaminants. The levels, sources, distribution, and ecological risk of OHCs, including 15 OCPs, 7 PCBs, and 7 PBDEs in surface sediments and water from this region, were investigated. OCPs and PCBs were the predominant pollutants in water and sediments samples, respectively...
September 22, 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/30229368/distribution-and-bioavailability-of-trace-metals-in-shallow-sediments-from-grand-lake-oklahoma
#19
Shane Morrison, Steve Nikolai, Darrell Townsend, Jason Belden
The Tri-State Mining District (TSMD) is a historic mining area containing the Tar Creek superfund site and is the source for sediment-bound metals in Grand Lake. Despite elevated concentrations of cadmium, lead, and zinc, no evidence of sediment toxicity has been observed during previous investigations; however, these studies were limited to lake transects with mostly deep-water sediments. The purpose of this study was to assess whether TSMD-specific sediment toxicity thresholds (STTs), developed for small streams and tributaries draining the TSMD, are predictive of biological effects within the greater lake body...
September 18, 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/30218120/assessment-of-fish-embryo-survival-and-growth-by-in-situ-incubation-in-acidic-boreal-streams-undergoing-biomining-effluents
#20
Hanna E Arola, Anna K Karjalainen, Jukka T Syrjänen, Maija Hannula, Ari Väisänen, Juha Karjalainen
The applicability of an in situ incubation method in monitoring the effects of metal mining on early life stages of fish was evaluated by investigating the impacts of a biomining technology utilizing mine on the mortality, growth, and yolk consumption of brown trout (Salmo trutta) and whitefish (Coregonus lavaretus) embryos. Newly fertilized eggs were incubated from autumn 2014 to spring 2015 in six streams under the influence of the mine located in North-Eastern Finland and in six reference streams. Although the impacted streams clearly had elevated concentrations of several metals and sulfate, the embryonic mortality of the two species did not differ between the impacted and the reference streams...
September 14, 2018: Archives of Environmental Contamination and Toxicology
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