Ambient Aerosol Sampling

Ambient Aerosol Sampling - Click to edit Master subtitle...

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Unformatted text preview: Click to edit Master subtitle style 4/30/10 Ambient Aerosol Sampling Christiana Lee March 29, 2010 4/30/10 What is an Ambient Aerosol?  Ambient measurements concern a systems surroundings (indoor or outdoors).  Ambient aerosols are not measured at or near the point of generation.  Humans are effected by ambient aerosols www.TodaysSeniorNetwork.com 4/30/10 Reasons for Measurement  Government Regulations/ Safely Health Pollution Visibility  Determine Source  Research How pollen travels www.Wikipedia.com 4/30/10 Objectives  Understand the requirements for obtaining different ambient aerosol samples.  Discover methods to meet specific requirements.  Familiarize yourself with existing sampling units. 4/30/10 Sampling System Requirements Type of aerosol  Size Reactivity/interactions Concentration  Prevent saturation Conc. stability Collection time Information needed  Viability Size Composition Practicality { F C 3 7 4 A 4 -D E D F -4 A B 6 -B 6 B 2 -9 6 D D 7 D E B 8 0 7 A } System Req. { A 8 B F D A 6 0 -1 7 9 0 -4 F 2 -9 A 2 6 -0 B A 9 5 F E D 0 4 D A } Aerosol Type { 9 C D A 7 5 3 D -D D 8 2 -4 8 6 C -B 4 5 9 -D 5 6 D 9 6 F C 0 3 0 5 } Conc. { 2 4 B E 3 8 4 3 -A B E 7 -4 5 2 B -A 3 F 2 -4 2 D E 0 F B 7 6 2 E } Info. Needed { E F 0 D B D 7 -4 E 9 -4 9 5 7 -B 8 5 0 -7 9 1 B E 6 F 0 8 F 5 9 } Gov. Regulation { B 9 6 2 C A F D -B D 5 0 -4 5 F 5 -B 1 6-3 5 0 B A D 9 C D B A 0 } Practicality { 2 5 1 C E 8 3 F -0 8 6 5 -4 0 5 8 -B 7 B D -3 6 8 4 2 7 B 3 0 A 5 3 } 4/30/10 Meeting Aerosol Requirements  Health/visibility related measurements have standard government collection/quantification methods. { 8 7 B 7 F 5 F C -5 9 5 E -4 8 9 3 -A 7 6-2 3 1 9 2 D 2 1 9 6 B } Is there a prescribed gov. technique? { 2 C 5 9 7 F 9-3 5 3 6 -4 E 6 0 -8 9 3 B -D 7 E 9 7 8 9 A 0 F 1 2 } Yes Use prescribed method Challenge current method, see next page { A 6 1 C 4 7 3 9 -2 1 0 9 -4 C 8 6 -B 0 7 D -6 2 E 3 D D D 0 1 7 E B } No See next page 4/30/10 Meeting Aerosol Requirements  A single dichotomous key for choosing a collection method would be too complex....
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Ambient Aerosol Sampling - Click to edit Master subtitle...

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