Detailed Measurements of Submicron Particles from
an Independence Day Fireworks Event in Albany, New York Using HR-ToF-AMS
Version 3 2019-08-16, 18:36Version 3 2019-08-16, 18:36
Version 2 2019-07-26, 17:33Version 2 2019-07-26, 17:33
Version 1 2019-07-15, 19:36Version 1 2019-07-15, 19:36
Posted on 2019-08-16 - 18:36
To study the impact of fireworks
(FW) events on air quality, aerosol
particles from FW displays were measured using a high-resolution time-of-flight
aerosol mass spectrometer (HR-ToF-AMS) and collocated instruments
during the Independence Day (July 4, 2017) holiday period at Albany,
NY, U.S.A. The FW influenced periods were identified using potassium
ion (K+) signals in the aerosol mass spectra. The FW influenced
peak mass concentration of submicron particles (PM1, or
particles with aerodynamic diameter less than 1 μm) measured
at the uptown site (approximately 8 km from the FW launch location)
was 61.8 μg m–3. The Independence Day FW events
resulted in significant increases in concentrations of both organic
and inorganic chemical components, including potassium, sulfate, and
chloride. An FW-related oxidized organic aerosol factor (FW-OOA) was
identified during the most intense FW event of the measurement period.
The intense emission of FW particles from the Independence Day celebration
contributed about 77% (36.3 μg m–3) of total
PM1 (47.0 μg m–3) measured at the
uptown site during Independence Day FW significantly influenced period
(07/04 23:00–07/05 03:00). A collocated wind LiDAR at the uptown
site measured atmospheric transport characteristics during the night
of July 4/5. The low observed winds and high aerosol emissions highlight
the significant episodic influence of FW burning on fine aerosol mass
concentration and chemical characteristics while large numbers of
people were clustered together and breathing the outdoor air.
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Zhang, Jie; Lance, Sara; Freedman, Jeffrey M.; Sun, Yele; Crandall, Brian A.; Wei, Xiuli; et al. (2019). Detailed Measurements of Submicron Particles from
an Independence Day Fireworks Event in Albany, New York Using HR-ToF-AMS. ACS Publications. Collection. https://doi.org/10.1021/acsearthspacechem.9b00046