These children's elevated blood-lead levels probably result from lead added to gasoline, since, although gasoline sold in and around Arumville has been lead-free since 1990, lead from vehicle exhaust remains in the soil for many years.Which of the following, if true, most strengthens the ...
Chemical analysis of samples of needles of Aleppo pine (Pinus halepensis), humus and mineral soil collected in the vicinity of the Pb-smelter in Lavrion, Attica, showed that an area of about 2 km around the smelter is heavily polluted primarily with Pb and also with Zn, S and F. Most ...
Utilization of plants and soil microbes in rejuvenating heavy metal-polluted soil is one of interesting topic and environmental-friendly technology. The study aimed to evaluate the role of arbuscular mycorrhiza (Glomus intraradices) in promoting growth of Vetiver zizanioides and Cynodon dactylon under ...
Soil and young children are no strangers. This is especially true when children play outdoors a lot, and even more so when they play in areas with open soil rather than a well-cared-for lawn. If that soil is contaminated with lead, children will carry lead-bearing soil with them on thei...
The concentration of lead in indoor dust is a key parameter in the Integrated Exposure Uptake Biokinetic (IEUBK) model used by the U.S. Environmental Protection Agency (USEPA) to evaluate risks to children from lead in soil. The default assumption is that the concentration of lead in indoor...
The use of biochar can adjust soil structure (eg. surface area, pore size, and distribution, etc.), improve soil physicochemical properties (eg. pH, cation exchange capacity, water retention, etc.) and increase plant nutrient absorption (Joseph et al., 2015); in addition, it can also be ...
In that community, soil lead was the strongest predictor of PbB among Red Pond subjects under 12 years of age. The blood lead—soil lead relationship in children differed from that reported in developed countries; blood lead levels were higher than expected for the household- specific soil lead...
The analytical determination of lead in soil is discussed with particular reference to emission spectrographic and atomic absorption spectrophotometric methods. The problems associated with the two techniques are discussed, and accuracy and precision data are presented. Data indicating that the titanium-to-...
A study of chromium and lead in the environment and the effect of bioaccessibility on human health and ecological risk assessments: The Davis Tannery Site. The concentration and bioaccessibility of chromium (Cr) and lead (Pb) were determined in three environmental media: soil, plants, and deer ...
Pb in soil and solid waste samples ranged from 0.03 to 4.1% and 1.2 to 15%, respectively. On average, 70% of the lead content was soluble in three different simulated gastric solutions (pH 1.5 and 1.7). For the same samples, lead solubility decreased to 2–22% when the pH was raised...