Evaluation of a direct personal coarse particulate matter monitor

Indoor Particle Alpha Radioactivity Origins in Occupied Homes

“…The two impactor stages are equipped with two slit-shaped acceleration nozzles and are followed by a backup Teflon filter at the third stage. The first two stages use polyurethane foam as impaction surfaces that collect particles above 10 μm and between 2.5 and 10 μm ( Lee et al , 2006 ; Case et al , 2008 ). The third stage uses a 37-mm Teflon filter supported by a drain disk and a stainless-steel screen to collect PM 2.5 .…”

Assessment and Measurement of Atmospheric Pollution (Particulate Matter) Around Zawiya City-Libya

“…Larger particles (10 µm diameter) may be airborne for up to 20 h and may travel 20-30 km while smaller particles may travel several thousand kilometers [8]. Large particles tend to settle out of the air quicker than smaller particles which remain suspended in the atmosphere for extended periods [9].…”

Chemical analysis and statistical study on the composition of airborne particulate matter (PM2.5 and PM10 ), aerosols (PM2.5 ) inorganic trace gases and precipitation in Singapore between 2009 �?? 2012

“…Particles which are mechanically generated from natural sources such as agriculture, mining, volcanoes and sea salt are generally larger than 2.5 µm and these particles are usually called "coarse particles". The particles which are generated from combustion processes or through gas to particle conversion processes usually have diameter between 0.1 and 2.5 µm and are categorized as "fine particles" [2].…”

“…Singapore is a small island country with a land area of approximately 700 km 2 , with a population close to 5 million and is one of the few countries in South East Asia which provides safe piped potable water nationwide [86]. Due to its high urban population density and lack of land available for water reservoirs, Singapore traditionally relied on imported water from Malaysia, subject to water treatment regimes.…”