Communities across the US face challenges from legacy lead contamination. In South Bend, Indiana, {over|more than} 68,000 {homes|houses|properties|residences} {were|had been|have been} {built|constructed} {before|prior to|just before|ahead of} 1978, and most {contain|include} leaded paint. When these {homes|houses|properties|residences} are repainted, repaired, or renovated, failure {to use|to make use of|to utilize|to work with} lead-safe practices can contaminate the surrounding soil with lead paint flakes and dust. {In this|Within this} study, we {used|utilized|employed|utilised|applied|made use of} X-ray fluorescence (XRF) to measure soil lead levels surrounding a {home|house|residence|property|household|dwelling} with exterior leaded paint (about 10% Pb w/w) {after|following|right after|soon after|immediately after|just after} it was repainted in fall of 2019. The painted wooden exterior was {prepared|ready} for painting by dry scraping {without|with out|without having|with no|devoid of|without the need of} {the use of|the usage of} tarps or plastic barriers. A total of 220 soil samples {were|had been|have been} collected {from the|in the} {home|house|residence|property|household|dwelling} and its {immediate|instant|quick} neighbors, and an {additional|extra|further|added|more} 102 samples {were|had been|have been} collected from 34 {homes|houses|properties|residences} {in the|within the|inside the} {same|exact same|identical|very same|similar} neighborhood. The median lead level in dripline soil samples across the neighborhood was 434 ppm, but {in the|within the|inside the} {recently|lately|not too long ago} repainted {house|home|residence|property}, the median soil lead was 1808.9 ppm, and it was 1,346.{4|four} ppm {in the|within the|inside the} {four|4} neighboring {homes|houses|properties|residences}. The repainted {house|home|residence|property} and its {four|4} neighbors {were|had been|have been} mulched by covering all bare soil to a 4-6 inch depth with chipped wood mulch. Two months later, {another|an additional|yet another|one more|a different|a further} {100|one hundred} soil samples {were|had been|have been} collected and analyzed. The surface lead level {around|about} the target {house|home|residence|property} dropped to 13.{8|eight} ppm, {showing|displaying} that mulching {is an|is definitely an} {effective|efficient|successful|powerful|productive|helpful} {strategy|technique|method|approach|tactic} for interim {control|manage|handle} of {high|higher} soil lead levels. BuyMethyl 5-bromo-1H-pyrazole-3-carboxylate 1219019-23-4 Chemscene PMID:24059181
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