scholarly journals Exposure to Indoor Ferromagnetic Particulate Matter Monitored by Strawberry Plants and the Occurrence of Acute Respiratory Events in Adults

2019 ◽  
Vol 16 (23) ◽  
pp. 4823
Author(s):  
Lieve Van Dyck ◽  
Hayat Bentouhami ◽  
Kyra Koch ◽  
Roeland Samson ◽  
Joost Weyler
Keyword(s):  
Air Pollution ◽  
Logistic Regression ◽  
Particulate Matter ◽  
Exposure Assessment ◽  
Indoor Air Pollution ◽  
Smoking Status ◽  
Assessment Method ◽  
Epidemiologic Research ◽  
Waking Up ◽  
Ferromagnetic Particles

Exposure assessment of air pollution in epidemiologic research remains a challenge. Previous studies showed that magnetic monitoring of strawberry leaves, based on Saturation Isothermal Remnant Magnetization (SIRM), is a valid tool for estimating the concentration of ambient particulate matter (PM). This study uses this assessment method for the first time in epidemiologic research to quantify indoor exposure to PM. In a nested case control study, we evaluated the association between ‘waking up by cough’ and indoor air pollution measured by SIRM of dust deposition on leaves of strawberry plants located in the bedroom in the general adult population. A multiple logistic regression was used to estimate the association between ‘waking up by cough’ and exposure to ferromagnetic particles of PM controlling for age, gender and smoking status. A cut-off of 10 µA was decided to define exposure status (high versus low). Using logistic regression, a crude odds ratio (OR) of 1.80 (95% CI: 0.90–3.60) for ‘waking up by cough’ was found. This association remained approximately the same after controlling for age, gender and smoking status (adjusted OR: 1.76; 95% CI: 0.60–5.30). We found an association between exposure to ferromagnetic particles and ‘waking up by cough’ in adults; however, it was not statistically significant. This environmental exposure assessment method could be a valuable alternative for expensive personal exposure measurement devices.

scholarly journals Is Indoor Air Pollution From Different Fuel Types Associated With the Anemia Status of Pregnant Women in Ethiopia?

2021 ◽  
Vol 12 ◽  
pp. 215013272110343
Author(s):  
Sewitemariam Desalegn Andarge ◽  
Abriham Sheferaw Areba ◽  
Robel Hussen Kabthymer ◽  
Miheret Tesfu Legesse ◽  
Girum Gebremeskel Kanno
Keyword(s):  
Air Pollution ◽  
Logistic Regression ◽  
Pregnant Women ◽  
Indoor Air ◽  
Pregnancy Outcomes ◽  
Indoor Air Pollution ◽  
Adverse Pregnancy Outcomes ◽  
Outcome Variable ◽  
Multivariable Logistic Regression Analysis ◽  
Adverse Pregnancy

Background Indoor air pollution from different fuel types has been linked with different adverse pregnancy outcomes. The study aimed to assess the link between indoor air pollution from different fuel types and anemia during pregnancy in Ethiopia. Method We have used the secondary data from the 2016 Ethiopian Demographic and Health Survey data. The anemia status of the pregnant women was the dichotomous outcome variable and the type of fuel used in the house was classified as high, medium, and low polluting fuels. Logistic regression was employed to determine the association between the exposure and outcome variables. Adjusted Odds Ratio was calculated at 95% Confidence Interval. Result The proportion of anemia in the low, medium, and high polluting fuel type users was 13.6%, 46%, 40.9% respectively. In the multivariable logistic regression analysis, the use of either kerosene or charcoal fuel types (AOR 4.6; 95% CI: 1.41-18.35) and being in the third trimester (AOR 1.72; 95% CI: 1.12-2.64) were significant factors associated with the anemia status of the pregnant women in Ethiopia. Conclusion According to our findings, the application of either kerosene or charcoal was associated with the anemia status during pregnancy in Ethiopia. An urgent intervention is needed to reduce the indoor air pollution that is associated with adverse pregnancy outcomes such as anemia.

scholarly journals Indoor air pollution and tobacco smoke exposure: impact on nasopharyngeal bacterial carriage in mothers and infants in an African birth cohort study

2019 ◽  
Vol 5 (1) ◽  
pp. 00052-2018 ◽  
Author(s):  
Aneesa Vanker ◽  
Polite M. Nduru ◽  
Whitney Barnett ◽  
Felix S. Dube ◽  
Peter D. Sly ◽  
...  
Keyword(s):  
Air Pollution ◽  
Cohort Study ◽  
Particulate Matter ◽  
Indoor Air ◽  
Tobacco Smoke ◽  
Indoor Air Pollution ◽  
Bacterial Species ◽  
Tobacco Smoke Exposure ◽  
Nasopharyngeal Carriage ◽  
The Impact

Indoor air pollution (IAP) or environmental tobacco smoke (ETS) exposure may influence nasopharyngeal carriage of bacterial species and development of lower respiratory tract infection (LRTI). The aim of this study was to longitudinally investigate the impact of antenatal or postnatal IAP/ETS exposure on nasopharyngeal bacteria in mothers and infants.A South African cohort study followed mother–infant pairs from birth through the first year. Nasopharyngeal swabs were taken at birth, 6 and 12 months for bacterial culture. Multivariable and multivariate Poisson regression investigated associations between nasopharyngeal bacterial species and IAP/ETS. IAP exposures (particulate matter, carbon monoxide, nitrogen dioxide, volatile organic compounds) were measured at home visits. ETS exposure was measured through maternal and infant urine cotinine. Infants received the 13-valent pneumococcal andHaemophilus influenzaeB conjugate vaccines.There were 881 maternal and 2605 infant nasopharyngeal swabs. Antenatal ETS exposure was associated withStreptococcus pneumoniaecarriage in mothers (adjusted risk ratio (aRR) 1.73 (95% CI 1.03–2.92)) while postnatal ETS exposure was associated with carriage in infants (aRR 1.14 (95% CI 1.00–1.30)) Postnatal particulate matter exposure was associated with the nasopharyngeal carriage ofH. influenzae(aRR 1.68 (95% CI 1.10– 2.57)) orMoraxella catarrhalis(aRR 1.42 (95% CI 1.03–1.97)) in infants.Early-life environmental exposures are associated with an increased prevalence of specific nasopharyngeal bacteria during infancy, which may predispose to LRTI.

scholarly journals Indoor air pollution and exposure assessment of the gulf cooperation council countries: A critical review

2018 ◽  
Vol 121 ◽  
pp. 491-506 ◽  
Author(s):  
Patrick Amoatey ◽  
Hamid Omidvarborna ◽  
Mahad Said Baawain ◽  
Abdullah Al-Mamun
Keyword(s):  
Air Pollution ◽  
Exposure Assessment ◽  
Indoor Air ◽  
Critical Review ◽  
Indoor Air Pollution ◽  
Gulf Cooperation Council

Exposure Assessment for Indoor Air Pollution Associated With Household Fuel Heating in Urban Environment

Epidemiology ◽  
2006 ◽  
Vol 17 (Suppl) ◽  
pp. S363-S364
Author(s):  
K Szafraniec ◽  
Y Drossinos ◽  
L Marelli ◽  
A Borowiak ◽  
F Lagier ◽  
...  
Keyword(s):  
Air Pollution ◽  
Urban Environment ◽  
Exposure Assessment ◽  
Indoor Air ◽  
Indoor Air Pollution

scholarly journals Indoor Air Pollution from Residential Stoves: Examining the Flooding of Particulate Matter into Homes during Real-World Use

Atmosphere ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 1326
Author(s):  
Rohit Chakraborty ◽  
James Heydon ◽  
Martin Mayfield ◽  
Lyudmila Mihaylova
Keyword(s):  
Air Pollution ◽  
Particulate Matter ◽  
Indoor Air ◽  
Real World ◽  
Indoor Air Pollution ◽  
Control Group ◽  
Multivariate Statistical ◽  
Primary Mechanism ◽  
Short Period ◽  
Risk Of Exposure

This study concerns the levels of particulate matter (PM2.5 and PM1) released by residential stoves inside the home during ‘real world’ use. Focusing on stoves that were certified by the UK’s Department of Environment, Food, and Rural Affairs (DEFRA), PM sensors were placed in the vicinity of 20 different stoves over four weeks, recording 260 uses. The participants completed a research diary in order to provide information on time lit, amount and type of fuel used, and duration of use, among other details. Multivariate statistical tools were used in order to analyse indoor PM concentrations, averages, intensities, and their relationship to aspects of stove management. The study has four core findings. First, the daily average indoor PM concentrations when a stove was used were higher for PM2.5 by 196.23% and PM1 by 227.80% than those of the non-use control group. Second, hourly peak averages are higher for PM2.5 by 123.91% and for PM1 by 133.09% than daily averages, showing that PM is ‘flooding’ into indoor areas through normal use. Third, the peaks that are derived from these ’flooding’ incidents are associated with the number of fuel pieces used and length of the burn period. This points to the opening of the stove door as a primary mechanism for introducing PM into the home. Finally, it demonstrates that the indoor air pollution being witnessed is not originating from outside the home. Taken together, the study demonstrates that people inside homes with a residential stove are at risk of exposure to high intensities of PM2.5 and PM1 within a short period of time through normal use. It is recommended that this risk be reflected in the testing and regulation of residential stoves.

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