lead contamination Articles
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Lead Contamination in Soil Information
Lead Contamination in Soil Expertise For more than 30 years, TDJ has assisted in Lead Contamination in Soil, lead paint sandblasting, and metal casting (ferrous & nonferrous) industries in the stabilization of heavy metal contaminated wastes. Millions of tons of industrial waste have been safely stabilized using our chemistries, and more than 150,000,000 square feet of lead paint has been ...
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Recreational impacts on the environment as an impetus to updating recreational regulations in the Washington State
The Washington State Department of Natural Resources (DNR) uses the Washington Administrative Code (WAC) as the regulations by which the agency manages public lands for Washington State. Originally written in 1970, the part of the WAC that guides recreational public access was suitable for its time. However, as populations grew, new technology has developed and the public now recreates deeper ...
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Lead Contamination in Indoor Firing/Gun Ranges
Indoor Firing/Gun Ranges and Lead Exposure It is estimated that there are 16,000 to 18,000 indoor shooting ranges in the United States. Each of these indoor gun ranges presents the possibility of lead exposure not just to the firearms users but many others who may utilize the building where the range is located. Lead Contamination Lead contamination is very likely throughout the building ...
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Case Study: City of Torrance - Building 12
Ellis identified lead contamination on pavement and soils in the city maintenance yard adjacent to this multi-use recreational facility. The contaminant was traced to the buildings' former use as a military storage bunker. Working quickly, Ellis designed and managed the abatement and demolition of 2 buildings at the site, insuring that all lead-contaminated waste was properly contained, ...
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Distribution patterns of lead accumulation in roadside soils: a case study from Erzurum, Turkey
Surface soils along roadsides or near to industrial areas may contain high concentrations of lead that adversely affect plant production. Lead contamination of roadside soils is generally attributed to the exhaust emissions of automobiles operating with leaded gasoline. The objectives of this study were to determine the relationships between lead accumulation in soils and the distance from the ...
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A study on PbO in CRT funnel glass at high–temperature condition
Glasses from the end–of–life Cathode Ray Tubes (CRTs) represent a pressing environmental problem, especially the funnel glass containing high lead concentration. To avoid lead contamination and re–utilise it, it is of great importance to study the separation process of lead contained in the funnel glass. In this study, the microstructure of scrap funnel glass and molten funnel glass were analysed ...
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Price Battery Plant Lead Contaminated Soil - Case Study
The Price Battery plant operated in the Borough of Hamburg, Berks County, Pa., from approximately 1940 to the mid-1990s. The site, about 1.2 square miles in size located in a mixed commercial/residential area in the former Price Battery facility. During operations, battery casings broke open and the lead plates are removed for smelting. The on-site battery plant lead smelter produced emissions ...
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Lead in the environment and in drinking water
Everywhere you look metal lead is in the headlines. The majority of the recent press attention however, has not focused in lead in contaminated water, air, or soil but rather on high concentrations of lead found in toys and children?s jewelry that have been produced in developing countries where lax standards apply. Regardless of the particular source of lead contamination, the fact is lead can ...
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Sequential extraction combined with isotopic analysis as a tool for studying lead contamination from mining activity
Tailings deposits generated from mining activities constitute a potential risk to the environment through leaching of potentially toxic elements hosted by a variety of minerals present in the mine-waste materials. In the present work, in an attempt to study the potential mobility of lead in different type of Pb-Zn ore concentrate residues and its environmental impact, a sequential extraction ...
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Lead (Pb) on Surfaces by a Portable X-Ray Fluorescence (XRF) Analyzer
This surface sampling method was developed to provide a reliable, portable procedure that will provide prompt measurement of surface contamination levels of lead. Information gained from samples taken during an initial walk-through portion of an inspection may influence decisions regarding the next steps to take, making the inspection more productive. Immediate clearance of clean areas such ...
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Biochar amendment to lead contaminated soil: Effects on the fluorescein diacetate hydrolytic activity and phytotoxicity to rice
The amendment effects of biochar on the total microbial activity was measured by FDA hydrolytic activity, and phytotoxicity in Pb(II) contaminated soils was examined by the application of four different biochars to soil, with rice as a test plant. The FDA hydrolytic activities of biochar‐amended soils were much higher than that of control. The survival rate of rice in lead‐contaminated ...
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Cleanup levels at an oil distribution and storage station in eastern central Mexico determined from a health risk assessment
The subsoil of an oil storage and distribution station located in eastern central Mexico was characterised in terms of some fuel fractions and metals. The site was found to be contaminated mainly with total petroleum hydrocarbons (TPHs) at a concentration higher than that legislated in Mexico. The presence of BTEX (benzene, toluene, ethylbenzene and xylenes) and 11 of the 16 USEPA polynuclear ...
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Lead contamination in soil and groundwater in and around a lead processing industry: a case study
Environmental pollution is of major concern across the world, which is affected by a variety of contaminants. Lead is one of the major heavy metals used in industrial activity. Unscientific handling and disposal of lead bearing residues or lead waste has led to contamination of the surrounding soil and water environment. A detailed investigation of soil and groundwater was carried out in and ...
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Lead Soil Contamination
What is Lead Soil Contamination? The keys to successful stabilization of lead soil contamination are: using the right reagent, using the right dosage and achieving good mixing of the reagent with the waste. Lead soil contamination involves encapsulation and chemical conversion during remediation projects rendering them non-leachable to allow disposal of a non-hazardous ...
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White Paper: Soil Data Quality Control
Why it is essential during a contaminated soil study? Before starting an evaluation of the contamination leading to decision-making tools for site clean-up, it is essential to ensure data quality. Thus, based on solid and reliable foundations, uncertainties occurring during the different steps of the decision process will be better controlled and the final quality of the project improved. The ...
By Geovariances
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The geostatistical reassessment of soil contamination with lead in metropolitan Warsaw and its vicinity
Soils of urban agglomerations are often exposed to pollution with lead, which high concentrations are frequently observed. The main sources of lead contamination are airborne particulate depositions and exhaust fumes. The study area encompassed Warsaw city, outskirts and fragments of Kampinoski National and Mazowiecki Landscape Parks. The scope of the study was to analyse the spatial distribution ...
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Geotex® Geotextiles: A Life Cycle Costing Approach to Roads
Subgrade contamination is the leading cause of failure in both pavements and unpaved roads. Aggregate layers used to support the traffic or pavement typically rests on a subgrade of sand, silt or clay. Without permanent separation, two factors will undoubtedly lead to the contamination of the aggregate layers—fine-grained soils will enter into the voids of the aggregate, preventing it from ...
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Saltwater flotation for more efficient matrix separation of wetland macroinvertebrates does not affect total mercury or methylmercury concentrations
We compared benthic wetland invertebrate matrix separation techniques (handpicking vs. saltwater flotation) to test for effects on invertebrate mercury concentrations. Neither total mercury nor methylmercury concentrations differed significantly between techniques across eight taxa. Matrix separation by the flotation technique took significantly less time and resulted in significantly greater ...
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Floating community ecological sanitation project on the Tonle Sap Lake
Water and sanitation are some of the most pressing issues facing people in rural Cambodia, and they are even more difficult to access for people that live in floating and flood-affected communities on Cambodia’s waterways. Human development in the country is still restrained by pollution and poor health, yet there is a lack of appropriate ...
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Effects of environmental lead contamination on cattle in a lead/zinc mining area: Changes in cattle immune systems on exposure to lead in vivo and in vitro
The Republic of Zambia is rich in mineral resources, such as zinc (Zn) and lead (Pb), and mining is a key industry in Zambia. A previous study of Pb pollution in Kabwe, one of the main mining areas, found that soil was contaminated with high levels of toxic metals over a substantial area. In the present study, the authors focus on toxic metal pollution in cattle, one of the most important ...
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