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

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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!