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https://www.readbyqxmd.com/read/29128822/a-doc-coagulant-gypsum-treatment-can-simultaneously-reduce-as-cd-and-pb-uptake-by-medicinal-plants-grown-in-contaminated-soil
#1
Hyuck Soo Kim, Byoung-Hwan Seo, Saranya Kuppusamy, Yong Bok Lee, Jae-Hwang Lee, Jae-E Yang, Gary Owens, Kwon-Rae Kim
The efficiency of gypsum, as a dissolved organic carbon (DOC) coagulator, for the simultaneous immobilization of two heavy metals (Cd and Pb) and one metalloid (As) in agricultural soils near an abandoned mining site was examined. The agricultural soil was defined as long-term contaminated as As (1540mgkg(-1)), Cd (55mgkg(-1)) and Pb (1283mgkg(-1)) concentrations exceeded the Korean guideline values for As (25mgkg(-1)), Cd (4mgkg(-1)), and Pb (200mgkg(-1)). Gypsum was incorporated into the contaminated soil at 3% (w/w)...
November 9, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29127640/single-and-combined-metal-contamination-in-coastal-environments-in-china-current-status-and-potential-ecological-risk-evaluation
#2
Romana Manzoor, Tingwan Zhang, Xuejiao Zhang, Min Wang, Jin-Fen Pan, Zhumei Wang, Bo Zhang
With the development of industrialization and urbanization, metal and metalloid pollution is one of the most serious environmental problems in China. Current contamination status of metals and metalloid and their potential ecological risks along China's coasts were reviewed in the present paper by a comprehensive study on metal contents in marine waters and sediments in the past few decades. The priority metals/metalloid cadmium (Cd), mercury (Hg), chromium (Cr), lead (Pb), and arsenic (As), which were the target elements of the designated project "Comprehensive Prevention and Control of Heavy Metal Pollution" issued by the Chinese government in 2011, were selected considering their high toxicity, persistence, and prevalent existence in coastal environment...
November 10, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29122454/ayurveda-formulations-a-roadmap-to-address-the-safety-concerns
#3
Kishor Patwardhan, Jigyasa Pathak, Rabinarayan Acharya
It is a matter of serious concern that the number of case reports pointing at a possible association between the clinical toxicity and the use of Ayurveda formulations is increasing significantly over the years in scientific medical literature. Though most of these cases are connected with the presence of heavy metals such as lead, mercury and arsenic in these formulations, there are also reports suggesting toxicity due to the presence of toxic chemicals of herbal origin. In the year 2008, the Government of India took an initiative of establishing the National Pharmacovigilance Programme for Ayurveda, Siddha and Unani drugs in a structured way...
November 6, 2017: Journal of Ayurveda and Integrative Medicine
https://www.readbyqxmd.com/read/29116456/soil-plant-transfer-models-for-metals-to-improve-soil-screening-value-guidelines-valid-for-s%C3%A3-o-paulo-brazil
#4
Sabrina N Dos Santos-Araujo, Frank A Swartjes, Kees W Versluijs, Fabio Netto Moreno, Luís R F Alleoni
In Brazil, there is a lack of combined soil-plant data attempting to explain the influence of specific climate, soil conditions, and crop management on heavy metal uptake and accumulation by plants. As a consequence, soil-plant relationships to be used in risk assessments or for derivation of soil screening values are not available. Our objective in this study was to develop empirical soil-plant models for Cd, Cu, Pb, Ni, and Zn, in order to derive appropriate soil screening values representative of humid tropical regions such as the state of São Paulo (SP), Brazil...
November 7, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29103419/marker-based-standardization-and-investigation-of-nutraceutical-potential-of-indian-propolis
#5
Nanaware Sadhana, Sathiyanarayanan Lohidasan, Kakasaheb Ramoo Mahadik
OBJECTIVE: Propolis, a resinous material collected by honey bees from various plants, has been explored globally for its medicinal and nutritional properties. However, research over Indian propolis is at infancy. This study was designed to investigate nutraceutical potential of Indian propolis. METHODS: In the present study, propolis extract was standardized with respect to markers caffeic acid phenethyl ester, caffeic acid, galangin, luteolin, curcumin, apigenin, pinocembrin and quercetin by new high-performance thin-layer chromatographic (HPTLC) methods...
November 2017: Journal of Integrative Medicine
https://www.readbyqxmd.com/read/29101692/analysis-of-chromium-status-in-the-revegetated-flora-of-a-tannery-waste-site-and-microcosm-studies-using-earthworm-e-fetida
#6
Ramkrishna Nirola, Mallavarapu Megharaj, Avudainayagam Subramanian, Palanisami Thavamani, Kavitha Ramadass, Rupak Aryal, Christopher Saint
Chromium from tannery waste dump site causes significant environmental pollution affecting surrounding flora and fauna. The primary aims of this study were to survey vegetation, investigate the degree of soil pollution occurring near tannery waste dump site and make a systematic evaluation of soil contamination based on the chromium levels found in plants and earthworms from the impacted areas. This paper presents the pollution load of toxic heavy metals, and especially chromium, in 10 soil samples and 12 species of plants...
November 3, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29091784/environmental-implications-and-spatial-distribution-of-natural-radionuclides-and-heavy-metals-in-sediments-from-four-harbours-in-the-egyptian-red-sea-coast
#7
Atef El-Taher, Hesham M H Zakaly, Reda Elsaman
Measurements of natural radionuclides concentrations ((226)Ra, (232)Th and (40)K) in sediments collected from sea, rivers or ocean is significant to protect the sea water ecosystem and to human health from radiation. Thirty-three sample of sediment have been collected from four ports in the Red Sea coast, Egypt for investigation by gamma-ray spectrometer using NaI(Tl) detector. The average and range activity concentrations of (226)Ra, (232)Th and (40)K were 26(5-58), 19(4-33) and 458(16-2665)Bqkg(-1) in Quseir Harbour, 30(14-53), 20(14-34) and 430(378-511)Bqkg(-1) in Abu-Tartour Harbour...
October 9, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/29071452/health-risk-assessment-of-heavy-metal-intake-due-to-fish-consumption-in-the-sistan-region-iran
#8
Mohammad Miri, Elham Akbari, Abdeltif Amrane, Seyed Javad Jafari, Hadi Eslami, Edris Hoseinzadeh, Mansur Zarrabi, Javad Salimi, Mohsen Sayyad-Arbabi, Mahmoud Taghavi
The heavy metal (Pb, Cd, Cr, and Ni) content of a fish species consumed by the Sistan population and its associated health risk factors were investigated. The mean concentrations of Pb, Cd, and Cr were slightly higher than the standard levels. The Ni content of fish was below the maximum guideline proposed by the US Food and Drug Administration (USFDA). The average estimated weekly intake was significantly below the provisional tolerable intake based on the FAO and WHO standards for all studied metals. The target hazard quotients (THQ) of all metals were below 1, showing an absence of health hazard for the population of Sistan...
October 25, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29062337/evidence-for-decreasing-sperm-count-in-african-population-from-1965-to-2015
#9
Pallav Sengupta, Uchenna Nwagha, Sulagna Dutta, Elzbieta Krajewska-Kulak, Emmanuel Izuka
PURPOSE: This meta-analysis, following our previous reports those documented an overall 57% diminution in mean sperm concentration around the globe over past 35 years and 32.5% decline in past 50 years in European population, attempts to report the declining trend of sperm concentrations in African population between 1965 and 2015. METHODS: In the course of retrieval of data following MOOSE guidelines and PRISMA checklist, we found a total of fourteen studies that have been conducted during that period on altering sperm concentration in the African male...
June 2017: African Health Sciences
https://www.readbyqxmd.com/read/29056034/spatial-assessment-of-potential-ecological-risk-of-heavy-metals-in-soils-from-informal-e-waste-recycling-in-ghana
#10
Vincent Nartey Kyere, Klaus Greve, Sampson Manukure Atiemo, James Hawkins Ephraim
The rapidly increasing annual global volume of e-waste, and of its inherently valuable fraction, has created an opportunity for individuals in Agbogbloshie, Accra, Ghana to make a living by using unconventional, uncontrolled, primitive and crude procedures to recycle and recover valuable metals from this waste. The current form of recycling procedures releases hazardous fractions, such as heavy metals, into the soil, posing a significant risk to the environment and human health. Using a handheld GPS, 132 soil samples based on 100 m grid intervals were collected and analysed for cadmium (Cd), chromium (Cr), copper (Cu), mercury (Hg), lead (Pb) and zinc (Zn)...
October 17, 2017: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/29051458/heavy-metal-pollution-of-chari-river-water-during-the-crossing-of-n-djamena-chad
#11
N'garam Nambatingar, Yohann Clement, Alain Merle, Tchadanaye New Mahamat, Pierre Lanteri
This study was carried out to identify and assess the water quality of the Chari River. The Chari, 1200 km long, is Chad's major water source. Municipal sewage, industrial wastewater discharge, and seasonal run-off from agriculture are regularly fed into the river. Several trace metals such as Cu, Zn, Fe, Ni, Cr, Mn, and Cd, were measured in different sampling stations located along the Chari River at N'Djamena in different campaigns from 2008 to 2010. Overall, manganese, zinc, chromium, and copper concentration levels were mainly in the range of the permissible limits prescribed by WHO guidelines (WHO 2011)...
October 12, 2017: Toxics
https://www.readbyqxmd.com/read/29038941/spatial-and-temporal-heavy-metal-distribution-and-surface-water-characterization-of-kanjli-wetland-a-ramsar-site-india-using-different-indices
#12
Navdeep Singh, Manpreet Kaur, Jatinder Kaur Katnoria
Suitability of surface water of Kanjli wetland, Punjab (India) during the period of 2013-2015 was assessed for drinking, irrigation and aquatic life using a water quality index (WQI), heavy metal pollution index (HPI) and aquatic toxicity index (ATI). WQI was calculated using 14 physico-chemical parameters while HPI determination used nine heavy metals like As, Cd, Co, Cr, Cu, Fe, Mn, Pb and Zn. WQI revealed that Kanjli wetland contained medium quality water (irrigation and aquatic life). Cr, Cd and Co exceeded desirable limits of World Health Organization (WHO, Guidelines for drinking-water quality, World Health Organization, Geneva, 2011) and Indian drinking water standard (2012) during all the three seasons (monsoon, post monsoon and winter)...
October 16, 2017: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/29034204/studies-on-analgesic-anti-inflammatory-activities-of-stem-and-roots-of-inula-cuspidata-c-b-clarke
#13
Sarvesh Kumar Paliwal, Bhawana Sati, Samriti Faujdar, Swapnil Sharma
The present study was carried out to evaluate analgesic and anti-inflammatory activities in Inula cuspidata stem and root extracts along with heavy metals estimation in stem and root powder. Stem and roots were extracted with chloroform (ICSCE, ICRCE) and methanol (ICSME, ICRME). Acute oral toxicity of all extracts was determined by OECD guidelines 425. Analgesic activity was investigated by using hot plate and acetic acid induced writhing models. Anti-inflammatory activity (acute) of all extracts was evaluated by carrageenan induced paw edema model...
October 2017: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/29031119/index-analysis-and-human-health-risk-model-application-for-evaluating-ambient-air-heavy-metal-contamination-in-chemical-valley-sarnia
#14
Richard Olawoyin, Linda Schweitzer, Kuangyuan Zhang, Oladapo Okareh, Kevin Slates
The impacts of air emissions as a consequence of industrial activities around communities of human habitation have been extensively reported. This study is the first to assess potential adverse human health effects in the Chemical Valley Sarnia (CVS) area, around the St. Clair River, using health risk models, ecological and pollution indices. Large quantities of particulate matters (PM) are generated from anthropogenic activities, which contain several heavy metals in trace quantities with potentially adverse effects to humans and environmental health...
October 11, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28952271/-dictamni-cortex-powder-induced-liver-injury-based-on-integrated-evidence-chain
#15
Yi-Xue Huang, Yu-Ming Guo, Yong-Feng Zhou, Cong-En Zhang, Jing Jing, Shi-Jing Liu, Na-Na Zhang, Jing-Yuan Song, Xiao-He Xiao, Jia-Bo Wang
A typical clinical case of taking Dictamni Cortex(Baixianpi) powder was analyzed to study liver damage caused by Dictamni Cortex. Liver damage was diagnosed according to the integrated evidence chain method recommended by the Guideline for Diagnosis and Treatment of Herb-Induced Liver Injury. By analyzing clinical history and biochemistry and imaging examinations, underlying diseases, such as viral hepatitis, autoimmune liver disease and alcoholic liver disease, were excluded. Through the investigation of medication history, we made it clear that the patient only took Dictamni Cortex powder during the period, and thus suspected that the liver injury was induced by Dictamni Cortex...
February 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28918278/heavy-metals-as-hg-and-v-and-stable-isotope-ratios-%C3%AE-13-c-and-%C3%AE-15-n-in-fish-from-yellow-river-estuary-china
#16
Yuan Liu, Guijian Liu, Zijiao Yuan, Houqi Liu, Paul K S Lam
The Yellow River Estuary is a significant fishery, but at present there are few studies about the concentrations of arsenic (As), mercury (Hg) and vanadium (V) in fish from this area, which might cause potential health risk to fish consumers. The aim of this study was to research on the accumulation and potential sources of heavy metals in the fish of the Yellow River Estuary. Arsenic, Hg, V and stable isotope ratios (δ(15)N and δ(13)C) in 11 species of 129 fish were analyzed. Results showed that the concentrations of As and Hg were all lower than the guideline levels established by international organizations and legal limits by several countries...
February 1, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/28891954/assessment-of-heavy-metal-pollution-and-health-risks-in-the-soil-plant-human-system-in-the-yangtze-river-delta-china
#17
Bifeng Hu, Xiaolin Jia, Jie Hu, Dongyun Xu, Fang Xia, Yan Li
Heavy metal (HM) contamination and accumulation is a serious problem around the world due to the toxicity, abundant sources, non-biodegradable properties, and accumulative behaviour of HMs. The degree of soil HM contamination in China, especially in the Yangtze River Delta, is prominent. In this study, 1822 pairs of soil and crop samples at corresponding locations were collected from the southern Yangtze River Delta of China, and the contents of Ni, Cr, Zn, Cd, As, Cu, Hg, and Pb were measured. The single pollution index in soil (SPI) and Nemerow composite pollution index (NCPI) were used to assess the degree of HM pollution in soil, and the crop pollution index (CPI) was used to explore the degree of HM accumulation in crops...
September 10, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28878243/the-environmental-impacts-of-one-of-the-largest-tailing-dam-failures-worldwide
#18
Vanessa Hatje, Rodrigo M A Pedreira, Carlos Eduardo de Rezende, Carlos Augusto França Schettini, Gabriel Cotrim de Souza, Danieli Canaver Marin, Peter Christian Hackspacher
The impacts of the SAMARCO iron tailing spill along more than 650 km, between the dam and the plume of the Doce River in the Atlantic, were assessed by the determination of toxic metals. The tailing spill caused a substantial increase in suspended sediment loads (up to 33,000 mg L(-1)), in addition to large depositions of waste along the Doce basin. The highest estimated transport of dissolved metals was observed for Fe (58.8 μg s(-1)), Ba (37.9 μg s(-1)) and Al (25.0 μg s(-1)). Sediments reached the highest enrichment factors (EFs) for Hg (4,234), Co (133), Fe (43), and Ni (16), whereas As (55), Ba (64), Cr (16), Cu (17), Mn (41), Pb (38) and Zn (82) highest EFs were observed for suspended particulate matter (SPM)...
September 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28822929/enhanced-roadside-drainage-system-for-environmentally-sensitive-areas
#19
William R Trenouth, Bahram Gharabaghi, Hani Farghaly
Stormwater runoff from roadways that encroach upon environmentally sensitive areas (ESAs) is one of the leading causes of degradation in urbanizing watersheds around the world. This is due to toxicity of the pollutant cocktail commonly found in roadway runoff, including heavy metals and sediments, as well as road salts from winter maintenance operations. This paper presents a novel design of an enhanced roadside drainage system (ERDS); an improved roadside drainage system that is intended to protect groundwater recharge zones and sensitive aquatic species in ESAs...
January 1, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/28822338/in-vitro-bioaccessibility-and-health-risk-assessment-of-heavy-metals-in-atmospheric-particulate-matters-from-three-different-functional-areas-of-shanghai-china
#20
Huang Huang, Ying Jiang, Xiaoyun Xu, Xinde Cao
The bioaccessibility and human health risks of heavy metals in PM2.5 and PM10 samples from three functional areas of Shanghai, China including a commercial area (CA), a residential area (RA), and an industrial area (IA), were investigated. Gamble's solution and physiologically based extraction test were employed to simulate human respiratory and digestive system, respectively. Both PM2.5 and PM10 concentration in the three areas exceeded the guideline of WHO, and followed the order of IA>CA≈RA. Zinc and Pb were the most abundant metals with a concentration range of 0...
January 1, 2018: Science of the Total Environment
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