Cockroach counts and house dust allergen concentrations after professional cockroach control and cleaning

McConnell, Rob; Jones, Craig; Milam, Joel; Gonzalez, Patty; Berhane, Kiros; Clement, Loran T.; Richardson, Jean L.; Hanley-Lopez, Jean; Kwong, Kenneth K.; Maalouf, Najib B.; Galvan, Judith; Platts-Mills, Thomas A.E.

doi:10.1016/s1081-1206(10)61532-3

Cited by 28 publications

(27 citation statements)

References 14 publications

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“…Our findings showing significant reductions in cockroach populations are consistent with those of other intervention studies that focused on reducing either pest infestations or allergen levels related to pest infestation (Arbes et al 2003; Brenner et al 2003; Kass and Outwater 2001; McConnell et al 2003; Wood et al 2001). To our knowledge, however, no other studies have demonstrated reductions in pesticide exposure using biologic and environmental measures of insecticide exposure.…”

Section: Discussionsupporting

confidence: 91%

An Intervention to Reduce Residential Insecticide Exposure during Pregnancy among an Inner-City Cohort

Williams

Barr

Camann

et al. 2006

Environ Health Perspect

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BackgroundWe previously reported widespread insecticide exposure during pregnancy among inner-city women from New York City. Here we report on a pilot intervention using integrated pest management (IPM) to reduce pest infestations and residential insecticide exposures among pregnant New York City African-American and Latina women (25 intervention and 27 control homes).MethodsThe IPM consisted of professional cleaning, sealing of pest entry points, application of low-toxicity pesticides, and education. Cockroach infestation levels and 2-week integrated indoor air samples were collected at baseline and one month postintervention. The insecticides detected in the indoor air samples were also measured in maternal and umbilical cord blood collected at delivery.ResultsCockroach infestations decreased significantly (p = 0.016) after the intervention among intervention cases but not control households. Among the intervention group, levels of piperonyl butoxide (a pyrethroid synergist) were significantly lower in indoor air samples after the intervention (p = 0.016). Insecticides were detected in maternal blood samples collected at delivery from controls but not from the intervention group. The difference was significant for trans-permethrin (p = 0.008) and of borderline significance (p = 0.1) for cis-permethrin and 2-isopropoxyphenol (a propoxur metabolite).ConclusionTo our knowledge, this is the first study to use biologic dosimeters of prenatal pesticide exposure for assessing effectiveness of IPM. These pilot data suggest that IPM is an effective strategy for reducing pest infestation levels and the internal dose of insecticides during pregnancy.

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Section: Discussionsupporting

confidence: 91%

An Intervention to Reduce Residential Insecticide Exposure during Pregnancy among an Inner-City Cohort

Williams

Barr

Camann

et al. 2006

Environ Health Perspect

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“…Examples include the use of air filters (Francis et al 2003; Kilburn et al 2003), pest management (McConnell et al 2003), and education coupled with environmental modification (Krieger et al 2002; Morgan et al 2004; Tobias et al 2004). Most of the interventions focus on control of more than one exposure, and have a relatively short duration.…”

Section: Intervention Studiesmentioning

confidence: 99%

Current State of the Science: Health Effects and Indoor Environmental Quality

Mitchell

Zhang²,

Sigsgaard

et al. 2007

Environ Health Perspect

208

119

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Our understanding of the relationship between human health and the indoor environment continues to evolve. Previous research on health and indoor environments has tended to concentrate on discrete pollutant sources and exposures and on specific disease processes. Recently, efforts have been made to characterize more fully the complex interactions between the health of occupants and the interior spaces they inhabit. In this article we review recent advances in source characterization, exposure assessment, health effects associated with indoor exposures, and intervention research related to indoor environments. Advances in source characterization include a better understanding of how chemicals are transported and processed within spaces and the role that other factors such as lighting and building design may play in determining health. Efforts are under way to improve our ability to measure exposures, but this remains a challenge, particularly for biological agents. Researchers are also examining the effects of multiple exposures as well as the effects of exposures on vulnerable populations such as children and the elderly. In addition, a number of investigators are also studying the effects of modifying building design, materials, and operations on occupant health. Identification of research priorities should include input from building designers, operators, and the public health community.

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“…Conversely, air movement, air conditioning, ventilation, and daily cleaning and sanitation may remove allergens. It is documented that proper sanitation not only removes allergens (Eggelston et al 1999, McConnell et al 2003, but also prevents the resurgence of cockroach populations by limiting food resources and enhancing the efÞcacy of blaticide sprays and baits (Schal 1988;Cloarec 1995, 1997;Eggleston and Arruda 2001). Moreover, the Þndings of Gore and Schal (2007) that Bla g 1 production in B. germanica is modulated in relation to food intake may imply that the cleaning and removal of food debris from the cockroach-infested environment may have an impact on the production and composition of cockroach allergens.…”

Section: Discussionmentioning

confidence: 99%

The Influence of Environmental Temperature and Humidity on Temporal Decomposition of Cockroach Allergens Bla g 1 and Bla g 2 in Feces

et al. 2010

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The aim of the study was to establish a model of the environmental fate of German cockroach (Blattella germanica L.) allergens Bla g 1 and Bla g 2 in feces under controlled and field conditions. Temporal decline (3, 6, and 9 mo) of allergens Bla g 1 and Bla g 2 in the feces protected from cleaning was measured under laboratory and experimental household conditions. The influence of environmental temperature (15, 20, 25, 30, and 35 degrees C) and moisture (53, 75, 85, and 100% RH) on allergen degradation was estimated for 3, 6, and 9 mo. Bla g 1 was more stable than Bla g 2 and the proteins. The proteins and Bla g 2 contents were correlated negatively with the decomposition time; Bla g 1 was not. However, when the content of Bla g 1 in control and exposed tubes was compared, the decrease after exposure was significant at exposure in 35 degrees C, 53 and 100% RH. In laboratory, the shortest half-life (16-38 d) of Bla g 2 was at high temperature and humidity (100% RH at 35 degrees C), whereas the longest half-life (340 d) was at 25 degrees C and 85% RH. In the apartment, the half-life was 406 d. The results indicate that Bla g 1 and Bla g 2 allergens can persist in feces for several months under usual household humidity and temperature.

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Cockroach counts and house dust allergen concentrations after professional cockroach control and cleaning

Cited by 28 publications

References 14 publications

An Intervention to Reduce Residential Insecticide Exposure during Pregnancy among an Inner-City Cohort

An Intervention to Reduce Residential Insecticide Exposure during Pregnancy among an Inner-City Cohort

Current State of the Science: Health Effects and Indoor Environmental Quality

The Influence of Environmental Temperature and Humidity on Temporal Decomposition of Cockroach Allergens Bla g 1 and Bla g 2 in Feces

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