scholarly journals Urban and Rural Airborne Particulate Matter: Seasonal Variation of Alpha Activity in Kanyakumari District

2021 ◽  
Vol 20 (3) ◽  
Author(s):  
C. Jesu Raj Jesu Raj ◽  
J. Prema Kumari
Keyword(s):  
Particulate Matter ◽  
Health Effect ◽  
Airborne Particulate Matter ◽  
High Volume ◽  
Alpha Activity ◽  
Alpha Particles ◽  
The Body ◽  
Airborne Particulate ◽  
Mountain Areas ◽  
Life On Earth

All forms of life on earth including man have evolved in the presence of radiation and have always been exposed to them from the natural environment. The health effect from exposure to alpha particles depends greatly on how a person is exposed. If alpha-emitters are inhaled, swallowed, or get into the body through a cut, the alpha particles can damage sensitive living tissue. In this paper, investigations have been made to determine the presence of alpha activity in the air. Hence, the alpha activity was measured by collecting Airborne Particulate Matter (APM) non-simultaneously on Whatman filters from ten sampling sites in Kanyakumari District during the summer and winter seasons using a high volume sampling method. The sampling sites are characterized by different contributions from ore refining factories like Indian Rare Earths (IRE) Limited, mountain areas, some industrial, non-nuclear activities like tiles and brick factories in and around the Kanyakumari district. The alpha activity in airborne particulate matter collected was determined by Alpha Counter and their results were tabulated.

Some Data on Elemental Composition of Airborne Particulate Matter in the Northern Negev Desert, Israel

1994 ◽  
Vol 21 (4) ◽  
pp. 342-346 ◽  
Author(s):  
Zvi Y. Offer ◽  
Yosef Steinberger
Keyword(s):  
Particulate Matter ◽  
Glass Fibre ◽  
Airborne Particulate Matter ◽  
High Volume ◽  
Negev Desert ◽  
Airborne Particulate ◽  
X Ray ◽  
Airborne Concentration ◽  
The Mean ◽  
High Concentrations

Airbone particulate samples were collected during 1989 in the northern Negev desert, Israel, using two Sierra ultra-high-volume dust samplers with cascade impactors on glass-fibre filters. A total of 12 elements were detected, of which only eight were present in relatively high concentrations, as was indicated by using an x-ray spectra XL-LINK system. During the study period, the mean annual airborne concentration was 102 μg·m−3, with a minimum and maximum concentration of 0.17 and 1.376 μg·m−3 per 12 hours, respectively. Eight elements (A1, Si, Ca, S, K, Cl, Fe, and Ti) were found in relatively high concentrations.

scholarly journals Use of statistical multivariate analysis to identify sources emitting particulate matter in Belo Horizonte, Brazil

2018 ◽  
Vol 13 (5) ◽  
pp. 1 ◽  
Author(s):  
Igor Felipe Silva Moura ◽  
Alberto Avellar Barreto ◽  
Raisa Helena Sant’Ana Cesar ◽  
Ananda Borjaille Cruz ◽  
Maria Ângela De Barros Correia Menezes
Keyword(s):  
Particulate Matter ◽  
Airborne Particulate Matter ◽  
High Volume ◽  
Metropolitan Region ◽  
Motor Vehicles ◽  
Airborne Particulate ◽  
Multivariate Statistical ◽  
Belo Horizonte ◽  
One Year ◽  
High Volume Sampler

Particulate matter is the mixture of solid and liquid particles. It may at times cause adverse effects to human health, in the climate, ecosystem and materials. The objective of this study was to identify the sources emitting particulate matter that contributes to environmental pollution at two sites in Belo Horizonte city. The metropolitan region of Belo Horizonte is characterized by numerous mining activities and other industries, high population and, consequently, a high number of vehicles. There are therefore several sources emitting pollutants into the atmosphere. Airborne particulate matter was collected in air filters during approximately one year using a high-volume sampler in strategic points. The concentration of particulate matter results showed that, in general, the values were 40% higher than the values recommended by legislation. During the summer rainy season, no sample exceeded the recommended limits at both sampling sites. The elemental composition was determined through neutron activation analysis and these values were considered variables in the multivariate statistical analysis for the identification of the main sources of particle emission and their contributions. The results confirmed a significant influence of the soil and motor vehicles in the degradation of the region’s air quality.

Simultaneous collection of airborne particulate matter on several collection substrates with a high-volume cascade impactor

2000 ◽  
Vol 34 (16) ◽  
pp. 2645-2651 ◽  
Author(s):  
Y.C Chan ◽  
P.D Vowles ◽  
G.H McTainsh ◽  
R.W Simpson ◽  
D.D Cohen ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Airborne Particulate Matter ◽  
High Volume ◽  
Cascade Impactor ◽  
Airborne Particulate

scholarly journals The Impact of Bushfire Smoke on Cattle—A Review

Animals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 848
Author(s):  
Benjamin Eid ◽  
David Beggs ◽  
Peter Mansell
Keyword(s):  
Particulate Matter ◽  
Prolonged Exposure ◽  
Negative Impact ◽  
Airborne Particulate Matter ◽  
Mortality Rates ◽  
Airborne Particulate ◽  
Primary Mechanism ◽  
Background Mortality ◽  
Fire Front ◽  
The Impact

In 2019–2020, a particularly bad bushfire season in Australia resulted in cattle being exposed to prolonged periods of smoke haze and reduced air quality. Bushfire smoke contains many harmful pollutants, and impacts on regions far from the fire front, with smoke haze persisting for weeks. Particulate matter (PM) is one of the major components of bushfire smoke known to have a negative impact on human health. However, little has been reported about the potential effects that bushfire smoke has on cattle exposed to smoke haze for extended periods. We explored the current literature to investigate evidence for likely effects on cattle from prolonged exposure to smoke generated from bushfires in Australia. We conducted a search for papers related to the impacts of smoke on cattle. Initial searching returned no relevant articles through either CAB Direct or PubMed databases, whilst Google Scholar provided a small number of results. The search was then expanded to look at two sub-questions: the type of pollution that is found in bushfire smoke, and the reported effects of both humans and cattle being exposed to these types of pollutants. The primary mechanism for damage due to bushfire smoke is due to small airborne particulate matter (PM). Although evidence demonstrates that PM from bushfire smoke has a measurable impact on both human mortality and cardiorespiratory morbidities, there is little evidence regarding the impact of chronic bushfire smoke exposure in cattle. We hypothesize that cattle are not severely affected by chronic exposure to smoke haze, as evidenced by the lack of reports. This may be because cattle do not tend to suffer from the co-morbidities that, in the human population, seem to be made worse by smoke and pollution. Further, small changes to background mortality rates or transient morbidity may also go unreported.

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