Pollutants are persistent in the environment, taint food chain, and harm people's health because of their toxicity. In this study, mangrove snails called Cerithidea obtusa (C. Obtusa) were gathered from Southwest Johor, Malaysia, amounts macro micro elements Ca, Fe, K, Mg, Na, As, Mn, Zn soft tissues, shells, related surface sediments analysed. The Neutron Activation Analysis (NAA) method was u...

Abandoned iron ore mining soil was analyzed for its metal contamination. Pollution indices were calculated and used to examine the potential of area be polluted by metals. The samples collected in triplicate from ten sampling points spread throughout area. energy dispersive X-ray fluorescence (EDXRF) analytical method determine concentrations Cd, Cu, Co, Pb, Zn, Fe, Cr, Ni, Mn. order mean (mg/k...

This is a preliminary report on total mercury (THg) in core sediments (\63 lm particle size) of Sunderban mangrove wetland, northeastern part of the Bay of Bengal, India. Cold vapor atomic absorption spectrometry (CVAAS) was used for THg determination. The concentration varies from 9.8 to 535.1 ppb (ngg). Results revealed variations over premonsoon and postmonsoon month at different core depth,...

Spatial concentrations and chemical fractions of heavy metals (Cr, Cu, Pb, Zn and Cd) in 16 sampling sites from the Honghu Lake were investigated using an atomic absorption spectrophotometer and optimized BCR (the European Community Bureau of Reference) three-stage extraction procedure. Compared with the corresponding probable effect levels (PELs), adverse biological effects of the studied five...

the concentration of selected trace metals (fe, cd, cu, pb, and zn) in 30surface sediments were measured using atomic absorption spectrometer to investigatethe spatial and seasonal variations of trace metals along kanyakumari coast, india. toassess the environmental risk of trace metals, enrichment factor, geo-accumulation index,pollution load index, and ecological risk index have been calculat...

This article aims to analyze the contamination of water and bottom sediment at Arroio Moinho (Mill Stream), in Porto Alegre (Rio Grande do Sul, Brazil). From two sample collections, a series diagnostic measurements were carried out, such as: a) physical-chemical biological analysis water; b) quality index (WQI); c) metal contamination, granulometric mineralogical analyses sediment; d) total org...

In the present paper, an investigation on natural and anthropic radioactivity heavy metals content in a basalt aggregate for concrete from Sicily, Southern Italy, was performed as case study. particular, evaluation of specific activity radium-226, thorium-232, potassium-40 caesium-137 radionuclides by using High-Purity Germanium (HPGe) γ-ray spectrometry, together with estimation several indexe...

Pollution of river bottom sediments with heavy metals (HMs) has emerged as a main environmental issue related to intensive anthropopressure on the water environment. In this context, risk harmful effects HMs presence in Warta River, third longest Poland, been assessed. The concentrations Cr, Ni, Cu, Zn, Cd, and Pb collected at 24 sample collection stations along whole length have measured analy...

The accumulation of tailings from gold mining and smelting may result in PTE pollution. We investigated contamination a large amalgamated mine pond Pinggu County, Beijing. In November 2017, 30 soil samples were collected around the pond. concentrations pollution degree PTEs sources Sb, As, Cd, Cu, Pb, Zn Hg analyzed. average concentration these elements near (16.24, 28.29, 0.99, 171.04, 263.25,...

The adoption of sustainable waste management strategies is a challenge faced by most European countries, mainly due to the need generate less and replace landfills with new methods treatment, associated increases in separate collection recycling rates. This paper highlights significance environmental legislation regarding removal protect ecosystems. aim was predict ecological responses heavy me...