Abstract:
BACKGROUND:After Hurricane Katrina, many New Orleans homes remained flooded for weeks, promoting heavy microbial growth. OBJECTIVES:A small demonstration project was conducted November 2005-January 2006 aiming to recommend safe remediation techniques and safe levels of worker protection, and to characterize airborne mold and endotoxin throughout cleanup. METHODS:Three houses with floodwater lines between 0.3 and 2 m underwent intervention, including disposal of damaged furnishings and drywall, cleaning surfaces, drying remaining structure, and treatment with a biostatic agent. We measured indoor and outdoor bioaerosols before, during, and after intervention. Samples were analyzed for fungi [culture, spore analysis, polymerase chain reaction (PCR)] and endotoxin. In one house, realtime particle counts were also assessed, and respirator-efficiency testing was performed to establish workplace protection factors (WPF). RESULTS:At baseline, culturable mold ranged from 22,000 to 515,000 colony-forming units/m3, spore counts ranged from 82,000 to 630,000 spores/m3, and endotoxin ranged from 17 to 139 endotoxin units/m3. Culture, spore analysis, and PCR indicated that Penicillium, Aspergillus, and Paecilomyces predominated. After intervention, levels of mold and endotoxin were generally lower (sometimes, orders of magnitude). The average WPF against fungal spores for elastomeric respirators was higher than for the N95 respirators. CONCLUSIONS:During baseline and intervention, mold and endotoxin levels were similar to those found in agricultural environments. We strongly recommend that those entering, cleaning, and repairing flood-damaged homes wear respirators at least as protective as elastomeric respirators. Recommendations based on this demonstration will benefit those involved in the current cleanup activities and will inform efforts to respond to future disasters.
journal_name
Environ Health Perspectjournal_title
Environmental health perspectivesauthors
Chew GL,Wilson J,Rabito FA,Grimsley F,Iqbal S,Reponen T,Muilenberg ML,Thorne PS,Dearborn DG,Morley RLdoi
10.1289/ehp.9258subject
Has Abstractpub_date
2006-12-01 00:00:00pages
1883-9issue
12eissn
0091-6765issn
1552-9924journal_volume
114pub_type
杂志文章abstract:OBJECTIVE:This study was designed to determine whether prenatal mercury exposure, including potential releases from the World Trade Center (WTC) disaster, adversely affects fetal growth and child development. METHODS:We determined maternal and umbilical cord blood total mercury of nonsmoking women who delivered at ter...
journal_title:Environmental health perspectives
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doi:10.1289/ehp.10831
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journal_title:Environmental health perspectives
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journal_title:Environmental health perspectives
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journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
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更新日期:2010-08-01 00:00:00
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journal_title:Environmental health perspectives
pub_type:
doi:10.1289/ehp.98106441
更新日期:1998-04-01 00:00:00
abstract:BACKGROUND:Eliminating silicosis is a priority of the International Labour Organization and the World Health Organization. Prevalence is particularly high in developing countries. OBJECTIVES:We describe trends in silicosis among South African gold miners who had had an autopsy between 1975 and 2007 and quantify the co...
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更新日期:2010-03-01 00:00:00
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journal_title:Environmental health perspectives
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更新日期:2010-03-01 00:00:00
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journal_title:Environmental health perspectives
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更新日期:2008-04-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
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更新日期:1993-12-01 00:00:00
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更新日期:2014-04-01 00:00:00
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更新日期:2010-01-01 00:00:00
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journal_title:Environmental health perspectives
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journal_title:Environmental health perspectives
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更新日期:1998-08-01 00:00:00
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journal_title:Environmental health perspectives
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更新日期:1993-12-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
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更新日期:1991-05-01 00:00:00
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journal_title:Environmental health perspectives
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更新日期:2013-06-01 00:00:00
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更新日期:2016-08-01 00:00:00
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更新日期:2008-08-01 00:00:00
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更新日期:2006-04-01 00:00:00
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journal_title:Environmental health perspectives
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更新日期:2009-06-01 00:00:00
abstract::To assess the possibility that increases in UV-B exposure on the earth's surface could lead to impaired resistance to several infectious diseases, we studied the effect of UV-B exposure on resistance against Trichinella spiralis. Wistar rats, orally infected with T. spiralis larvae, were exposed to suberythemal doses ...
journal_title:Environmental health perspectives
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更新日期:1994-03-01 00:00:00
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journal_title:Environmental health perspectives
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更新日期:2017-07-05 00:00:00
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journal_title:Environmental health perspectives
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journal_title:Environmental health perspectives
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更新日期:1981-12-01 00:00:00