A Study on Indoor/Outdoor Concentration of Particulate Matter in Rural Residential Houses in India

2009 ◽  
Author(s):  
David Daneesh Massey ◽  
Aditi Kulsrestha ◽  
Ajay Taneja
Keyword(s):  
Particulate Matter ◽  
Outdoor Concentration

scholarly journals Current state of particulate matter research and management in Serbia

2010 ◽  
Vol 16 (3) ◽  
pp. 207-212 ◽  
Author(s):  
Milena Jovasevic-Stojanovic ◽  
Alena Bartonova
Keyword(s):  
Particulate Matter ◽  
International Workshop ◽  
Well Being ◽  
Air Pollutant ◽  
Economic Consequences ◽  
Successful Management ◽  
Atmospheric Research ◽  
Current State ◽  
Outdoor Concentration ◽  
Health And Well Being

Particulate matter is the air pollutant that currently receives most attention from the atmospheric research community, the legislative authorities and the general public. Limiting particulate matter in the atmosphere which will result in significant benefits for human health, with associated positive economic consequences. Successful management of particulate matter requires scientific knowledge about particulate matter ?from cradle to grave?, covering sources of particles, processes that govern their formation, composition, dispersion and fate in the atmosphere, as well as knowledge about human exposure and associated health and well being. Such knowledge allows to design and perform effective and efficient abatement measures and monitoring. This paper provides an introduction to the research and monitoring regarding particulate matter in Serbia. The contributions were first partly presented at the 2nd international workshop of the WeBIOPATR ?Outdoor concentration, size distribution and composition of respirable particles in WB urban area? project in September 2009. This information provides context to the contributions in this number, and was part of the rationale of the project WeBIOPATR.

scholarly journals Secondary Organic Aerosol Formation from the Oxidation of Decamethylcyclopentasiloxane at Atmospherically Relevant OH Concentrations

2021 ◽  
Author(s):  
Sophia M. Charan ◽  
Yuanlong Huang ◽  
Reina S. Buenconsejo ◽  
Qi Li ◽  
David R. Cocker III ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Urban Areas ◽  
Secondary Organic Aerosol ◽  
Organic Aerosol ◽  
Aerosol Formation ◽  
Yield Data ◽  
Mixing Ratios ◽  
Outdoor Concentration ◽  
Chemical Products ◽  
Atmospherically Relevant

Abstract. Decamethylcyclopentasiloxane (D5, C10H30O5Si5) is measured at ppt levels outdoors and ppb levels indoors. Primarily used in personal care products, its outdoor concentration is correlated to population density. Since understanding the aerosol formation potential of volatile chemical products is critical to understanding particulate matter in urban areas, the secondary organic aerosol yield of D5 was studied under a range of OH concentrations, OH exposures, NOx concentrations, and temperatures. The secondary organic aerosol (SOA) yield from the oxidation of D5 is extremely dependent on the OH concentration, and differing measurements of the SOA yield from the literature are resolved in this study. Here, we compare experimental results from environmental chambers and flow tube reactors. Generally, there are high SOA yields (> 68 %) at OH mixing ratios of 5 × 109 molec cm−3. At atmospherically relevant OH concentrations, the SOA yield is largely < 5 % and usually ~1 %. This is significantly lower than SOA yields used in emission and particulate matter inventories and demonstrates the necessity of OH concentrations similar to the ambient environment when extrapolating SOA yield data to the outdoor atmosphere.

Advanced technique to reduce the emissions of particulate matter (PM)

2008 ◽  
Vol 105 (12) ◽  
pp. 586-595
Author(s):  
M. Dormann ◽  
B. Vanderheyden ◽  
D. Steyls
Keyword(s):  
Particulate Matter ◽  
Advanced Technique

Platelet Metabolism during the Interiorization of Two Different Types of Particulate Matter

1972 ◽  
Vol 27 (02) ◽  
pp. 263-271 ◽  
Author(s):  
I. A. Cooper ◽  
P Cochrane ◽  
B. G. Firkin ◽  
K. J. Pinkard
Keyword(s):  
Particulate Matter ◽  
Polymorphonuclear Leukocyte ◽  
Anaerobic Metabolism ◽  
Human Platelets ◽  
Metabolic Changes ◽  
Polystyrene Latex ◽  
Considerable Time ◽  
Difference Of Opinion ◽  
Different Types ◽  
Aerobic And Anaerobic

SummaryIt has been suggested that human platelets possess the ability to phagocytose particulate matter similar to the polymorphonuclear leukocyte. However some difference of opinion has arisen regarding this contention, particularly as differences have been demonstrated with regard to the observed metabolic changes occurring in platelets related to such a process.The experiments reported in this paper were designed to observe the aerobic and anaerobic metabolism in human platelets during and following interiorization of two different particles, viz. polystyrene latex and thorotrast. The results of these experiments show a marked difference between both types of particles with regard to observable metabolic changes despite the rapid interiorization of both types of material. Some alteration occurs in both aerobic and anaerobic metabolism a considerable time after interiorization of latex, whereas no alteration could be demonstrated after interiorization of thorotrast. It is suggested that the interiorization of particulate matter is by some process other than phagocytosis and that observed metabolic changes related to latex may be due to a release reaction.

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