TY - GEN
T1 - The national atmospheric deposition program/ammonia monitoring network (NADP/AMoN)
T2 - 106th Air and Waste Management Association Annual Conference and Exhibition, ACE 2013
AU - Lehmann, Christopher M.B.
AU - Gay, David A.
AU - Puchalski, Melissa A.
N1 - Conference Proceedings
PY - 2013
Y1 - 2013
N2 - NH3 is readily released into the air from biological, combustion, waste disposal, and industrial sources. It is estimated that 3.9 Tg/yr of NH3 are emitted into the atmosphere in the US. The National Atmospheric Deposition Program/National Trends Network (NADP/NTN) has monitored wet deposition of ammonium and other major ions across the US since 1978. The NADP's Ammonia Monitoring Network (AMoN) was established in October 2007 to routinely measure NH3 using cost-efficient passive type air samplers. AMoN provides land managers, air quality modelers, ecologists, and policymakers critical data to assess compliance with PM2.5 standards, among other objectives. The completion of 2012 measurement data provides 5 yr of data for the NADP/AMoN. Long-term (>5 yr) trends in ambient NH3 levels across the US were analyzed based on AMoN measurements. The NADP/AMoN provides consistent data of sufficient quality to determine long-term trends in ambient NH3 across the US. Statistically significant and seasonally homogeneous trends were determined at 5 of 14 sites evaluated that had a minimum of 5 yr valid data. All significant trends were increasing, although the overall magnitude was small in comparison with mean annual concentrations (1%/yr). This is an abstract of a paper presented at the 106th AWMA Annual Conference and Exhibition (Chicago, IL 6/25-28/2013).
AB - NH3 is readily released into the air from biological, combustion, waste disposal, and industrial sources. It is estimated that 3.9 Tg/yr of NH3 are emitted into the atmosphere in the US. The National Atmospheric Deposition Program/National Trends Network (NADP/NTN) has monitored wet deposition of ammonium and other major ions across the US since 1978. The NADP's Ammonia Monitoring Network (AMoN) was established in October 2007 to routinely measure NH3 using cost-efficient passive type air samplers. AMoN provides land managers, air quality modelers, ecologists, and policymakers critical data to assess compliance with PM2.5 standards, among other objectives. The completion of 2012 measurement data provides 5 yr of data for the NADP/AMoN. Long-term (>5 yr) trends in ambient NH3 levels across the US were analyzed based on AMoN measurements. The NADP/AMoN provides consistent data of sufficient quality to determine long-term trends in ambient NH3 across the US. Statistically significant and seasonally homogeneous trends were determined at 5 of 14 sites evaluated that had a minimum of 5 yr valid data. All significant trends were increasing, although the overall magnitude was small in comparison with mean annual concentrations (1%/yr). This is an abstract of a paper presented at the 106th AWMA Annual Conference and Exhibition (Chicago, IL 6/25-28/2013).
KW - Ammonia
KW - NADP
KW - National atmospheric deposition program
KW - Trend analysis
UR - http://www.scopus.com/inward/record.url?scp=84903273106&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84903273106&partnerID=8YFLogxK
UR - http://ace2013.awma.org/wp-content/uploads/2013/06/ACE-2013-Final-Program.pdf
M3 - Conference contribution
AN - SCOPUS:84903273106
SN - 9781629934440
T3 - Proceedings of the Air and Waste Management Association's Annual Conference and Exhibition, AWMA
SP - 2935
EP - 2939
BT - 106th Air and Waste Management Association Annual Conference and Exhibition, ACE 2013
PB - Air and Waste Management Association
Y2 - 25 June 2013 through 28 June 2013
ER -