Jarvis P, Quy K, Macadam J, Edwards M, Smith M. Intake of lead (Pb) from tap water of homes with leaded and low lead plumbing systems. Sci Total Environ. 2018 Dec 10;644:1346-1356. doi: 10.1016/j.scitotenv.2018.07.064.
Methods of quantifying consumer exposure to lead in drinking water are increasingly of interest worldwide, especially those that account for consumer drinking habits and the semi-random nature of water lead release from plumbing systems. A duplicate intake protocol was developed in which individuals took a sub-sample from each measured drink they consumed in the home over three days in both winter and summer. The protocol was applied in two different water company regional areas (WC1 and WC2), selected to represent high risk situations in England, with the presence or absence of lead service pipes or phosphate corrosion control. Consumer exposure to lead was highest in properties with lead service pipes, served by water without P dosing. The protocol indicated that a small number of individuals in the study, all from homes with lead service pipes, consumed lead at levels that exceeded current guidance from the European Food Standards Agency. Children’s potential blood lead levels (BLLs) were estimated using the Internal Exposure Uptake Biokinetic model (IEUBK). The IEUBK model predicted that up to 46% of children aged 0-7 years old may have elevated BLLs (>5 μg/dL) when consuming the worst case drinking water quality (>99%ile). Estimating blood lead levels using the IEUBK model for more typical lead concentrations in drinking water identified in this study (between 0.1 and 7.1 μg/L), predicts that elevated BLLs may affect a small proportion of children between 0 and 7 years old.
Could that $3.5 Billion help pay for the border wall? Just wondering….
“California Governor Gavin Newsom announced yesterday that he was terminating former Governor Jerry Brown’s pet Green project; a high speed bullet train connecting Los Angeles to San Francisco.” click here
“California has been forced to cancel the massive bullet train project after having spent and wasted many billions of dollars,” Trump tweeted Thursday morning. “They owe the Federal Government three and a half billion dollars. We want that money back now. Whole project is a ‘green’ disaster!” click here
“A modest long-term (1800s-present) declining trend in ocean pH values predominantly occurred prior to 1930, or before anthropogenic CO2 emissions began rising precipitously. Since 1930, seawater pH trends have risen slightly, meaning sharply rising CO2 has been coincident with less, not more, ocean “acidification”.” click here
Thamires de Oliveira Moura, Franciele, Palmeira Campos, Iara Brandão, Yvonilde Dantas Pinto Medeiros. Inorganic and organic contaminants in drinking water stored in polyethylene cisterns Food Chemistry, Volume 273, 1 February 2019. https://doi.org/10.1016/j.foodchem.2018.03.104
This work evaluated the presence of contaminants in stored rainwater in 36 polyethylene tanks installed in two rural communities of the semiarid of Bahia, Brazil. Carbonyl compounds were analyzed by High Performance Liquid Chromatography (HPLC-UV), BTEX (Benzene, Toluene, Ethylbenzene and Xylenes) by gas chromatoghaphy (GC-FID), and trace elements by inductively coupled plasma optical emission spectrometry (ICP-OES). Seven carbonyl compounds were quantified including acrolein (<3–115 µg L−1), which is considered a potent mutagenic agent, above the potability limit in 75% of the cases. Trace elements such as copper, zinc, barium, aluminum and lead, more frequently found, were also quantified, and lead (<0,56–99 µg L−1) was above the tolerable limit for drinking water of 10 μg L−1 in 73% of the cases. The results show that the stored water in polyethylene cisterns in the Brazilian semiarid region does not present satisfactory conditions for human consumption.
“Numerous media outlets cited last week’s polar vortex as an example of extreme weather caused by climate change, but it turns out such cold snaps are actually on the decline.” click here
“The U.S. Environmental Protection Agency recently issued a directive announcing new membership priorities for its federal advisory committees (the “Directive”). The Directive requires, in part, “that no member of an EPA federal advisory committee be currently in receipt of EPA grants.” The Plaintiffs complain that this requirement is arbitrary and capricious, conflicts with several statutes and regulations governing advisory committees, and is a shift in policy that EPA failed to explain.
EPA’s Acting Administrator,1 however, has moved to dismiss the suit under Federal Rules of Civil Procedure 12(b)(1) and 12(b)(6). At the outset, EPA alleges that the Plaintiffs lack standing and their claims are unripe. It also argues that because the Directive is an appointment policy, it is a matter reserved to agency discretion and the Plaintiffs largely rely on statutes that are either inapposite or offer no meaningful standard for review. And even if the Plaintiffs have identified applicable statutes, EPA argues that the Plaintiffs have failed to allege a violation of any specific statutory provision. For the reasons stated below, EPA’s motion to dismiss will be granted.” click here
“A White House Council of Economic Advisers (CEA) study released on Friday found that Americans will save $450 billion through Trump’s Obamacare reforms. The CEA suggested that Trump’s repeal of the Obamacare individual mandate and the expansion of short-term insurance plans and Association Health Plans (AHPs) will save Americans billions over the next ten years.” click here