نتایج جستجو برای: increasing in concentration of heavy metals such as lead

تعداد نتایج: 24668008  

Hamidreza Savaheli Khosro Issazadeh, Naeem Momeni

Heavy metal pollution by natural factors is a world-wide phenomenon. Release of large quantities of heavy metals without handling proper processes that could decrease the concentration of such a material is a hassle that makes strains resistant to these heavy metals apart from entering into human food chain. In this research, wastewater of four firms in Guilan province such as Foolad, Risandegi...

Journal: :journal of food quality and hazards control 0
z. derakhshan department of environmental health engineering, faculty of public health, shahid sadoughi university of medical sciences, yazd, iran m. faramarzian department of environmental health engineering, faculty of health, shiraz university of medical sciences, shiraz, iran a.h. mahvi school of public health, tehran university of medical sciences, tehran, iran m.s. hosseini [email protected] m. miri department of environmental health engineering, faculty of public health, shahid sadoughi university of medical sciences, yazd, iran

background: given the importance of vegetables in the food pyramid, their safety is very important from view point of public health. vegetable contamination by heavy metals can lead to bioaccumulation of these toxic and disease-causing elements in the body of consumers. therefore, in this study, the concentration of some heavy metals, including lead (pb), cadmium (cd), zinc (zn) and copper (cu)...

Journal: :international journal of advanced biological and biomedical research 2014
khosro issazadeh hamidreza savaheli naeem momeni

heavy metal pollution by natural factors is a world-wide phenomenon. release of large quantities of heavy metals without handling proper processes that could decrease the concentration of such a material is a hassle that makes strains resistant to these heavy metals apart from entering into human food chain. in this research, wastewater of four firms in guilan province such as foolad, risandegi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه خلیج فارس - دانشکده مهندسی 1393

in civil engineering concrete is a material combined of hydraulic cement, sand, gravel and water. gravel and sand compose 60 to 70 percent of concrete. these aggregates support compression force of concrete. cement paste acts as glue to stick grain together. in bushehr factories producing aggregates do not operate according to astm standards, so that fineness modulus (fm) of the produced sands ...

Journal: :مدیریت خاک و تولید پایدار 0
عبدالامیر بستانی هیات علمی ندا صفاری انارکی دانشگاه شاهد حشمت امیدی دانشگاه شاهد

to evaluate the effect of application of municipal solid waste compost (mswc) on the accumulation of heavy metals of lead, nickel and cadmium in the soil under maize cultivation, a factorial experiment in base randomized complete block design (rcbd) with four different amounts of municipal solid waste compost (zero, 15, 30 and 60 tons ha-1) and time (compost applied once or twice) was performed...

Ali Gholami, Alireza Jafarnejadi, Ebrahim Panahpor Elahe Kardan Khoshnaz Payandeh,

Soil contamination with heavy metals such as arsenic has harmful effects on human health and agricultural products. Arsenic (AS) is one of the heavy metals which are highly toxic and carcinogenic. This research was conducted to study the effect of organic manure on increasing the Arsenic absorption ability by Cress plant in the greenhouse of the Agriculture and Natural Resources Research Center...

A. Perillo C. Losacco,

Contamination by heavy metals has attracted increasing attention considering the ability of these elements in producing serious consequence to ecosystem, and especially on animals health. Due to their widespread use in human activities such as industry, agriculture and even as medicine (e.g. arsenic, selenium and platinum), numerous health risks may be associated with exposure to these substanc...

محمدپور تهمتن, رضاعلی, مشایخ صالحی, علی, یوسفی, ذبیح اله,

Background and purpose: High concentrations of heavy metals in industrial and domestic wastewater cause adverse effects on the environment and human health. Therefore, removing heavy metals from water resources is considered as a positive step towards sustainable development. Today, application of artificial wetlands to remove pollutants such as heavy metals is increasing due to high costs of c...

Hoseinali Norouzi , Mahdi Khodabakhshi , Seyyed Bahman Aleseyyed ,

Introduction: Drinking water should be free of any chemical contaminants. One of the important aspects of drinking water pollution is presence of heavy metals that can be hazardous for consumer’s health. This study was carried out to determine the concentration of heavy metals in urban and rural drinking water networks of Hamadan province in 2016. Materials and Methods: This study was a ...

ژورنال: بوم شناسی آبزیان 2016

Heavy metals are non-biodegradable and tend to accumulate in tissues of organisms such as fish. Considering the various health risks and the nutritional benefits associated with fish consumption; assessment of heavy metals in fish tissues is important. The present study aims to measure and assess  lead and cadmium concentrations in the muscles of Liza saliens from the Gomishan International Wet...

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