There are concerns over traffic-related air pollution in Uganda's capital, Kampala. Individuals in the transportation sector are hypothesized to be at greater risk for exposure to volatile organic compounds, given their proximity to vehicle exhaust. Silicone wristbands are a wearable technology that passively sample individuals' chemical exposures. We conducted a pilot cross sectional study to measure personal exposures to volatile organic compounds among 14 transportation workers who wore a wristband for five days. We analyzed for 75 volatile organic compounds; 33 chemicals (35%) were detected and quantified in at least 50% of the samples and 15 (16%) chemicals were detected and quantified across all the samples. Specific chemicals were associated with participants' occupation. The findings can guide future large studies to inform policy and practice to reduce exposure to chemicals in the environment in Kampala.
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http://dx.doi.org/10.1080/19338244.2023.2275144 | DOI Listing |
Pest Manag Sci
December 2024
Department of Entomology and Plant Pathology, University of Arkansas, Fayetteville, AR, USA.
Background: While the mother knows best/preference performance hypothesis has been well tested in natural ecosystems, how these ecological principles differ in agroecosystems is less explored. In this study, we investigated the ovipositional preference and offspring performance of fall armyworm (FAW) across vegetative and reproductive stages of soybean.
Results: We examined trichomes, volatile organic compounds (VOCs) and assessed electroantennogram (EAG) measurements to understand how olfactory responses are affected by volatiles at different phenological stages during photoperiodism (photophase and scotophase).
J Dairy Sci
December 2024
Ruminant Nutrition and Emissions, Agroscope, 1700 Posieux, Switzerland. Electronic address:
Exhaled breath offers an interesting matrix of low invasive sampling of potentially relevant information about the organism's metabolism in the form of volatile organic compounds (VOC). The VOC can be exhaled by the ructus (Islam et al., 2023) or passed the blood-lung barrier for expiration through the lungs.
View Article and Find Full Text PDFJ Allergy Clin Immunol Pract
December 2024
Ochsner Health System, Department of Allergy/Immunology and Tulane University, School of Public Health and Tropical Medicine. Electronic address:
Flooding events, particularly those caused by hurricanes and other large storm events, are increasingly fueled by climate change. Stormwater intrusion into homes creates ideal conditions for mold growth. Homes inundated by floodwaters become vulnerable to production of mold spores, particulate matter, and volatile organic compounds, all of which trigger a variety of poor health outcomes.
View Article and Find Full Text PDFJ Allergy Clin Immunol Pract
December 2024
Department of Medicine, Division of Allergy and Immunology, University of Nebraska Medical Center, Omaha, NE. Electronic address:
As the effects of anthropogenic climate change have become more apparent, the influences of climate and extreme weather events on health have continued to gain attention. The fact Earth has warmed over the past century is indisputable and the rate of warming is more alarming. As a result of anthropogenic climate change an alteration in the air mixture has occurred over time.
View Article and Find Full Text PDFWater Res
December 2024
Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain. Electronic address:
Acidogenic co-fermentation of waste activated sludge (WAS) and food waste (FW) under thermophilic conditions enhances process consistency, while overcoming the problem of acetic acid consumption due to growing methanogens. Two long-term continuous co-fermentation experiments were carried out with a WAS:FW mixture (70:30 % in VS) at organic loading rate of 8 gVS/(L·d). Experiment 1 assessed the impact of temperature (35 °C and 55 °C) and WAS origin (WAS_A and WAS_B) in two collection periods.
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