general spartan activities crystal weagle & graydon snider june 9, 2015 first international...
TRANSCRIPT
GENERAL SPARTAN ACTIVITIESCrystal Weagle &
Graydon Snider
June 9, 2015
First International SPARTAN Meeting
Dalhousie University
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Why measure PM2.5?
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Air Sampling Instruments1. Nephelometer 2. Filter Sampler
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SPARTAN Sampling Strategy• Sample daily
• Filter economy
= one day = 160 min of intermittent* sampling
1 32 54 76 8 9
• Decrease sampling bias
• Reduces semivolatile loss
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Site Deployment
Testing
Deployed
Each site collocated with Sunphotometer
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Site Deployment Timeline
Jan-13 Apr-13 Jul-13 Nov-13 Feb-14 May-14 Aug-14 Dec-14 Mar-15 Jun-15
Filter Instrument Operational Period(s)
Beijing
Dhaka
Kanpur
Bandung
Buenos Aires
Ilorin
Manila
Rehovot
Hanoi
Atlanta
Mammoth Cave
Test sites
PM2.5 PMcoarse Duty %
70 78 15
49 119 20
93 40 27
31 24 100
10 13 100
16 19 82
17 31 87
15 29 66
? ? 15
9 4 82
14 10 100
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Beijing, China
• January – April 2013: instrument testing
• June 2013: long-term sampling started
• HI collocation: September 2013
• New instruments arrived June 2014
• Everything running smoothly
PM2.5 = 70 μg/m3
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Dhaka, Bangladesh• Installed October 2013
• HI collocation: Oct. – Nov. 2013
• Electronics case replaced
August 2014
• Nephelometer cleaned and
calibrated March 2015
• Universal Power supply on site
• Instruments running well
PM2.5 = 49 μg/m3
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Kanpur, India
• Installed October 2013
• HI collocation: Dec. 2013 – Jan. 2014
• Nephelometer cleaned and calibrated April 2015
• Universal Power Supply on site
• Issues: Frequent power outages
• Instruments running well
PM2.5 = 93 μg/m3
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Bandung, Indonesia
• Installed January 2014
• HI collocation: July – August 2014
• Nephelometer cleaned and calibrated April 2015
PM2.5 = 31 μg/m3
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Manila, Philippines• Installed January 2015
• HI collocation: April – May 2014
• Filter sampler running well
• Nephelometer down for repairs
• Issue: prone to short power outages
PM2.5 = 17 μg/m3
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Ilorin, Nigeria
• Installed March 2014
• HI collocation: not yet
• Filter sampler working well
• No nephelometer on site
• Solar panel/battery power supply
• Oct. 2014 – April 2015: electrical
issue stopped sampling
PM2.5 = 16 μg/m3
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Buenos Aires, Argentina• Installed September 2014
• HI collocation: imminent
• Both instruments working well
PM2.5 = 10 μg/m3
14
Rehovot, Israel
• Installed February 2015
• HI collocation: not yet
• Both instruments working well
• 1-week intensive sampling May 3 – 10
during Lag Bahomer Campaign 2015
PM2.5 = 15 μg/m3
http://en.wikipedia.org/wiki/Lag_BaOmer
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Hanoi, Vietnam• Installed April 2015• No filter data…yet!• Harvard Impactor: Not yet• First site using new nephelometer inlet• Filter sampler and nephelometer working well
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Global PM2.5/AOD ratio
• No clear global bias in measured vs. modeled values
• PM2.5/AOD ratio varies by a factor of 4 across sites
189-day filter exchangeDaily filter exchange
Date (mm/dd/yy)
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Summary
• New nephelometer inlet installed in Hanoi
• SPARTAN sampling ongoing at 9 sites!
• PM2.5 mass concentrations, scatter, AOD, and chemical
speciation results are collected at all locations
• Initial SPARTAN PM2.5/AOD results have been obtained
• New site coming in Pretoria, South Africa!
Thank you!