soil contamination in the vicinity of the abandoned lakan lead and zinc mine was studied. the results showed that over the past decades, the environmental pollution was caused by lead, zinc tailings dam and acid mine drainage. the average of lead, zinc, cadmium, copper and nickel is 1295, 4273, 27, 185 and 92 mg/kg, respectively in the soils of tailings dam. these metals were continuously dispe...

the inter-tidal mangrove environment of mengkabong lagoon is important as it supports the local fishing activities, nursery grounds for many fish and shellfish species, and as well as being central for ecotourism activities. the study showed that in general, the physicochemical parameters (ph, salinity and electrical conductivity), granulometric fractions, organic matter, base cations (na, k, c...

The current study was conducted on the valley of Duhok and agricultural lands irrigated from it, where three sites were identified for collecting samples quarterly soil sediment using clean plastic bags purpose measuring lead, nickel, cobalt copper. Pollution load index (PLI), Nemerow pollution (PIN), Potential Ecological Risk (PER) Geo-accumulation Index (Igeo) also calculated according to int...

The contamination levels and distribution of heavy metals were assessed in riverbed sediments water column samples from Mura Kimpulande Rivers, both impacted by copper-cobalt gold mining activities. Analyses performed using inductively coupled plasma-mass spectrometry (ICP-MS), atomic absorption (AAS), fluorescence (AFS). Results showed high concentrations Ni, Cu, Zn, As, Cd, Hg samples. rivers...

Mercury (Hg) is a global and widely distributed heavy metal pollutant. can affect human health as well the of ecosystems poses ecological risks. The subjects this study are three types grassland in Beidianzi region, Songnen Plains, Northeastern China, characterized by different degrees degradation. mercury content levels atmosphere, soil, forage grass on grasslands were determined. In addition,...

The impact of heavy metal contamination caused by human activities on mangroves, rivers, estuaries, and coastal wetlands has gained attention recently. In this study, the presence metals in mangrove Sepang Besar River's surface sediments was examined. As, Mo, Pb, Cr, Co, Cd, Ni, Hg concentrations sand were measured using inductively coupled plasma mass spectrometry (ICP-MS). Across all sampling...

Data dealing with the assessment of heavy metal pollution in road dusts in Jeddah, Saudi Arabia and its implication to human health risk of human exposure to heavy metals, are scarce. Road dusts were collected from five different functional areas (traffic areas (TA), parking areas (PA), residential areas (RA), mixed residential commercial areas (MCRA) and suburban areas (SA)) in Jeddah and one ...

Water and sediment samples were collected from six different stations, located along the Nil River between February and June 2015. Concentrations of cadmium, lead, zinc, and copper were determined. The extent of the sediment pollution was assessed, using the multiple pollution indices, namely contamination factor (CF), pollution load index (PLI), and the geoaccumulation index (Igeo). The result...

Population growth has led to the intensification of average daily traffic (ADT), highlighting vehicles as one major sources heavy metal (HM) pollution in cities. The objective this paper is conduct a spatial analysis HM associated with road-deposited sediments (RDSs), based on ADT observed main roads Latin American megacity (Bogotá, Colombia). following risk indices were considered: Geoaccumula...