Abstract：
:An evaluation of the seasonal dynamics of metal (Cd, Cr, Cu, Pb and Zn) phase distribution and speciation, along with different hydrogeochemical facies, was conducted along the entire stretch of a perennial tropical (Brahmaputra) River. Water samples were collected from twelve locations during the monsoon, post-monsoon and pre-monsoon seasons. A characteristic trend in bioavailability was observed in the sequence of Zn > Cu > Pb > Cr > Cd, reflecting non-significant seasonal changes in dissolved and particulate phase metal fractions at all twelvelocations. Partition (or distribution) coefficients (Kds) for Cu (5.30-6.50), Zn (4.47-6.44), Pb (3.69-4.97) and Cr (3.25-5.15), reflect the influences of anionic inorganic constitutents (aqua ion complexes), environmental variables, and river hydrology. MINTEQA2 calculations showed that metal forms complexes with other inorganic ions such as Cl-, SO42-, HCO3- and strong binding as organic complexes (for Cu and Pb) reduces their leaching potential to groundwater system. High log Kd values (≥5.3) and significant spatial variations at locations R3 to R8 of Pb, Cu, and Zn during pre-monsoon period may be explained by the formation of complexes with organic ligands in sewage and domestic wastes (humic and fulvic acids). Multivariate statistical analysis revealed multi-metal co-contamination, mainly of Zn, Cu, Cd and Pb and dissolved nutrients, loading in different clusters, emphasizing the importance of climatic, anthropogenic, terrigenous and lithological sources as controlling factors for seasonal metal dynamics in the river water.
journal_name
Environ Resjournal_title
Environmental researchauthors
Gogoi A,Taki K,Kumar Mdoi
10.1016/j.envres.2020.109265subject
Has Abstractpub_date
2020-04-01 00:00:00pages
109265eissn
0013-9351issn
1096-0953pii
S0013-9351(20)30157-2journal_volume
183pub_type
杂志文章abstract：:Seasonal patterns of birth outcomes, such as low birth weight, preterm birth and stillbirth, have been found around the world. As a result, there has been an increasing interest in evaluating short-term exposure to ambient temperature as a determinant of adverse birth outcomes. This paper reviews the epidemiological e...
journal_title：Environmental research
pub_type： 杂志文章,评审
doi：10.1016/j.envres.2011.01.023
更新日期：2011-04-01 00:00:00
abstract：BACKGROUND:Cadmium exposure was found to cause a decline in lung function among the general population, but these findings were limited to smokers and gender differences were not explored. OBJECTIVES:To examine the relationship between cadmium and chronic obstructive pulmonary disease (COPD) according to gender and sm...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2014.04.008
更新日期：2014-07-01 00:00:00
abstract：:The Kastanozem complex in the dry steppe of southern Russia underlies an artificially-constructed forest strips. Deep ploughing to a depth of 45 cm was used to process the soil prior to planting. Between 20 and 40 cm depth, soil density was high, 1.57 t m-3. Soil hardness was also high, 440 psi. Soil aggregates greate...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2020.110605
更新日期：2020-12-13 00:00:00
abstract：:In this work, tetracycline (TC) adsorption and desorption were studied, and the soil properties that most influenced the process were identified. Batch experiments were carried out on 63 crop soil samples, which showed a wide range of values in their physicochemical characteristics. Adsorption curves fit well to the F...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2019.108607
更新日期：2019-10-01 00:00:00
abstract：:Fetal exposure to environmental toxicants may program the development of children and have long-lasting health impacts. The study tested the hypothesis that depressed height gain in childhood is associated with prenatal exposure to airborne polycyclic aromatic hydrocarbons (PAH) and heavy metals (lead and mercury). Th...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2014.08.047
更新日期：2015-01-01 00:00:00
abstract：INTRODUCTION:While studies have suggested that exposure to manganese (Mn) may be associated with neurodevelopment in school-age children, there is limited information on prenatal and postnatal Mn exposures and tremor or motor function in children. METHODS:We measured Mn levels in dentine of shed teeth, representing pr...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2017.08.035
更新日期：2017-11-01 00:00:00
abstract：:Nano technological research offered uncountable opportunities for engineered nanoparticles (ENPs) in the field of biomedical, pharmaceutical, agricultural, cosmetics, textiles, automobiles and electronic industry. Large scale commercial production and use of nanoparticles with smaller size and characteristic physico-c...
journal_title：Environmental research
pub_type： 杂志文章,评审
doi：10.1016/j.envres.2019.02.003
更新日期：2019-05-01 00:00:00
abstract：:Soil pollution from heavy metals poses a serious risk for environment and public health. Phytoremediation is an eco-friendly and cheaper alternative compared to chemical-physical techniques. We carried out in vitro tests where three microorganisms Trichoderma harzianum, Saccharomyces cerevisiae and Wickerhamomyces ano...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2020.109427
更新日期：2020-06-01 00:00:00
abstract：:In a longitudinal study, we assessed the relation between daily exposure to ambient air malodorous sulfur compounds from pulp production and experience of symptoms in a small population living in the vicinity of a pulp mill. Special emphasis was laid on exposure-response pattern, where the intensity of the symptoms of...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1006/enrs.1995.1073
更新日期：1995-11-01 00:00:00
abstract：:Prior work has demonstrated that inorganic mercury produces a number of toxic effects in embryos when this metal is administered to pregnant hamsters subcutaneously on the eighth gestation day. Also, treatment of various pregnant animals with zinc produces little evidence of embryotoxicity. The literature reveals that...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/0013-9351(84)90147-6
更新日期：1984-12-01 00:00:00
abstract：BACKGROUND:Inorganic arsenic exposure is ubiquitous and both exposure and inter-individual differences in its metabolism have been associated with cardiometabolic risk. A more efficient arsenic metabolism profile (lower MMA%, higher DMA%) has been associated with reduced risk for arsenic-related health outcomes. This p...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2018.09.034
更新日期：2019-01-01 00:00:00
abstract：:Several epidemiological studies have shown that the farm environment impacts allergy protection mechanisms in children. These associations are not well understood, but it is thought that contact to microorganisms may mediate this effect. For example, heat-inactivated Listeria (L.) monocytogenes have been successfully ...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2008.02.007
更新日期：2008-07-01 00:00:00
abstract：BACKGROUND:It remains unclear as to whether neglecting residential mobility during pregnancy introduces bias in studies investigating air pollution and adverse perinatal outcomes, as most studies assess exposure based on residence at birth. The aim of this study was to ascertain whether such bias can be observed in a s...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2016.02.001
更新日期：2016-05-01 00:00:00
abstract：:The relationship of inorganic arsenic exposure through drinking water and total urinary arsenic excretion in a nonoccupationally exposed population was evaluated in a cross-sectional study in three mayor cities of Chile (Antofagasta, Santiago, and Temuco). A total of 756 individuals in three population strata (elderly...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2005.02.007
更新日期：2005-06-01 00:00:00
abstract：:In this study, Ag3PO4/TiO2@molecular sieve (MS) ternary composites were fabricated via in-situ deposition and hydrothermal growth method for photocatalytic degradation of formaldehyde and sodium isobutyl xanthate (SIBX) under visible light irradiation. XRD, PL, UV-vis, UPS, SEM-EDS and XPS techniques were adopted to c...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2020.109984
更新日期：2020-11-01 00:00:00
abstract：:Soil heavy metal pollution assessment is an important procedure in soil quality and ecological risk management, for which different mathematical models have been developed. However, these models have often failed to consider the characteristics of both heavy metals and the polluted sites. In this study, we analyzed th...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2020.110246
更新日期：2021-01-01 00:00:00
abstract：:The effect of carbon and silicon nanotubes (CNTs and SiNTs) and carbon nanofibers (CNFs) to microscopic marine algae Heterosigma akashiwo was studied, using algal growth inhibition for 3 days (acute effect) and 7 days (chronic effect) as toxicity endpoints. The criterion of the toxic effect was the statistically signi...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2018.06.005
更新日期：2018-10-01 00:00:00
abstract：:The purpose of this work is to assess the effect of ozone, a reactive product of environmental photochemical oxidation, on lymphocytes of the lung. We exposed male Fischer rats to ozone at a concentration of 0.5 ppm for 20 hr/day for 1-14 days. Animals were treated with radioactive thymidine and were sacrificed at Day...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/s0013-9351(05)80089-1
更新日期：1990-04-01 00:00:00
abstract：:Based on 1677 published studies, 1648 sites across China collected from 1985 to 2016 were used to research the concentrations of arsenic in agricultural soils. In order to understand the status of arsenic pollution in agricultural soils in China over the past three decades, and to learn about the arsenic stocks in agr...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2020.109525
更新日期：2020-07-01 00:00:00
abstract：BACKGROUND:Long-term exposure to ambient fine particulate matter (≤ 2.5 μg/m3 in aerodynamic diameter; PM2.5) is significantly associated with increased risk of premature mortality. Our goal was to provide an updated meta-analysis of all-cause and cause-specific mortality associated with exposure to PM2.5 and to better...
journal_title：Environmental research
pub_type： 杂志文章,meta分析
doi：10.1016/j.envres.2018.06.021
更新日期：2018-10-01 00:00:00
abstract：:There is only limited monitoring data of black carbon for epidemiologic analyses. In the current study, we used the distributed lag models to evaluate the association between mortality outcomes (both total and cause-specific) and exposure to black carbon and fine particle (PM(2.5)) in Shanghai, China. During our resea...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2012.08.007
更新日期：2013-01-01 00:00:00
abstract：:We assessed the association between blood methylmercury (MeHg) and cognitive function in 240 adult residents living near a deserted chloralkali plant. Total mercury (T-Hg) in the blood, MeHg, and health and dietary related questionnaire were examined for all participants. The Cognitive Abilities Screening Instrument (...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2008.06.006
更新日期：2008-11-01 00:00:00
abstract：:The Brazilian coast of the Rio de Janeiro State has bays of great economic, ecological and social importance. However, these ecosystems have been suffering intense anthropogenic influence, mainly due to the contamination by polycyclic aromatic hydrocarbons (PAHs) from urban-industrial activities. Moreover, PAHs are or...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2019.108959
更新日期：2020-02-01 00:00:00
abstract：:Seawater pollution problems are gaining interest worldwide because of their public health impact and other issues. Levels of pollutants at Gaza Beach determined the only recreational area for the inhabitants of Gaza were recently determined and shown to be high. Five bathing sites in the Middle Camps area along the Ga...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2005.07.005
更新日期：2006-05-01 00:00:00
abstract：:Exposure to polycyclic aromatic hydrocarbons (PAHs) was assessed in a cohort of 394 subjects, 198 residing in three small municipalities near a new waste-to-energy (WTE) incinerator located in the Turin area, and 196 residing in neighbouring control areas in the town (of Turin). The assessment of exposure to PAHs was ...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2019.108903
更新日期：2020-02-01 00:00:00
abstract：:Studies to date of the developmental effects of pre- and postnatal methylmercury exposure from fish consumption in the Seychelles Islands, using linear regression models for analysis, have not shown adverse effects on neurodevelopmental test scores. In this study we evaluated whether nonlinear effects of methylmercury...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1006/enrs.2000.4082
更新日期：2000-10-01 00:00:00
abstract：:The effects of methylmercury administration on adenosine 3',5'-cyclic monophosphate (cAMP)-dependent protein kinase (protein kinase A) and protein kinase C were investigated by determining their second messenger bindings ([3H]cAMP binding for protein kinase A and [3H]PDBu for protein kinase C) and enzymatic activities...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1006/enrs.1993.1146
更新日期：1993-11-01 00:00:00
abstract：:Air pollution caused by particulate matter (PM) has become a serious issue, and significant research has focused on managing large stationary emission sources, i.e., the primary sources of PM. Currently, the U.S. Environmental Protection Agency (EPA) Method 201A and ISO 23210 are predominantly employed to measure the ...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2020.110507
更新日期：2021-02-01 00:00:00
abstract：:In recent years, Solea senegalensis has increasingly been used in pollution monitoring studies. In order to assess its response to some particular widespread pollutants, juveniles of S. senegalensis were administered an intraperitoneal injection of the model aryl hydrocarbon receptor agonist β-naphtoflavone (βNF) and ...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2014.09.024
更新日期：2014-11-01 00:00:00
abstract：BACKGROUND:Polychlorinated biphenyls (PCBs) may interact with several thyroid functions. Severe environmental pollution by PCBs has been observed in Brescia, Italy, due to the presence of a factory that produced these compounds until 1984. OBJECTIVES:We aimed to investigate the correlation between serum levels of tota...
journal_title：Environmental research
pub_type： 杂志文章
doi：10.1016/j.envres.2008.08.003
更新日期：2008-11-01 00:00:00
