نتایج جستجو برای: geoaccumulation index igeo

تعداد نتایج: 396189  

Journal: :Produccion + limpia 2021

Introduction. Urban runoff sediments contain heavy metals that generate risk to the environment. Several assessment indexes for have been developed, which show level of contamination particles in environment and their origin. Besides, sediment is also associated with particle size distribution hydrometeorological characteristics. Objective. This work seeks evaluate from collected an experimenta...

2017
Dr. D. Sreeramulu T. Damodharam

Visakhapatnam harbor is one of the Indian leading port for which substantial industrial expansion is proposed over the next decade. However, there has been little attempt to date to assess the extent of contamination in sediment and to characterize the potential impacts of contaminants on marine sediment. In this research work author was observed different sediment qualities in different season...

Journal: :iranian journal of environmental sciences 0
s. m. didar-ul islam department of environmental sciences, jahangirnagar university, dhaka-1342, bangladesh mohammad amir hossain bhuiyan department of environmental sciences, jahangirnagar university, dhaka-1342, bangladesh tanjena rume department of geological sciences, jahangirnagar university, dhaka-1342, bangladesh mohammad mohinuzzaman department of environmental science and disaster management, noakhali science and technology university, sonapur-3814, bangladesh

the contamination of riverbed sediments by heavy metals has assumedserious problems due to their toxicity and accumulative behavior. the present studyinvestigated the concentrations of heavy metals from the bottom sediments of shitalakhyariver to understand the level of contamination and their distribution. the averageconcentrations of heavy metals al, k, ca, mg, fe, as, cu, co, cr, and zn are ...

Journal: :Case studies in chemical and environmental engineering 2023

The research was conducted to determine the cause, dispersal, and risk assessment of metal-contaminated sediment. sediment collected from Madna stream. It transported laboratory, air-dried, ground with a mortar pestle, sieved. digested 10 ml HNO3 30 HCl heated on hot plate at 100 °C for about 2 hours. 1 solution diluted 50 centrifuged 1600 revolutions per minute minutes. clear analyzed by an at...

Journal: :Frontiers in Marine Science 2021

Analyzing the presence and quantifying trace elements is of paramount importance to understand natural environmental processes monitor degree anthropogenic disturbance mitigate impacts already caused. Here, we aimed establish a baseline profile concentrations in sandy sediments intertidal areas three Amazonian beaches (Brazil). For each beach, were collected from different sectors (south, cente...

Journal: :Sustainability 2022

Screening various plant species to act as hyperaccumulators and associated health risks could serve a sustainable solution for the bioremediation heavy metals (HMs). For first time, present study explored phytoremediation potential of native plants, soil enrichment, human with contamination HMs in samples collected from municipal solid-waste open dump site. Soil (n = 18 + 18) dumpsite control s...

Journal: :Water 2022

The quality of bottom sediment is important for the condition aquatic environments. High levels potentially harmful components in sediments negatively affect surface water Lake are commonly used to control environment terms both heavy metals and organic compounds. This paper presents new data on compositions from So?tmany Lake, located Masurian District (Poland). aim this study was determine ph...

Introduction and purpose: The consumption of agricultural products cultivated in soils contaminated with heavy metals is very health-threatening. Therefore, the implementation of an inclusive and multilateral assessment of the heavy metal risk on the verge of their entrance to the food chain is a matter of fundamental importance. Regarding this, the present study was conduct...

2013
Kumar Manoj Balwant Kumar Pratap Kumar Padhy

The Subarnarekha River is one of the most important east flowing rivers of India. The river in West Bengal and Odisha is site for the Subarnarekha Barrage Project and Kirtania port respectively. The major objectives of the present study were to investigate the pre-projects level of heavy metals in water and sediments of the Subarnarekha River along the projects’ sites. Water and Surface sedimen...

2017
Baoling Duan Wuping Zhang Haixia Zheng Chunyan Wu Qiang Zhang Yushan Bu

Land use of sewage sludge is the primary disposal method in Shanxi, accounting for 42.66% of all. To determine the ecological risk of heavy metals in sewage sludge, contents of seven heavy metals in sewage sludge from 9 municipal waste water treatment plants (WWTPs) that had the highest application for land use were determined. The order of the measured concentrations was: Zn > Cr > Cu > Ni > P...

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