TY - JOUR
T1 - Mobile Laboratory Measurements of High Surface Ozone Levels and Spatial Heterogeneity During LISTOS 2018
T2 - Evidence for Sea Breeze Influence
AU - Zhang, Jie
AU - Ninneman, Matthew
AU - Joseph, Everette
AU - Schwab, Margaret J.
AU - Shrestha, Bhupal
AU - Schwab, James J.
N1 - Publisher Copyright:
© 2020. The Authors.
PY - 2020/6/16
Y1 - 2020/6/16
N2 - The Long Island Sound Tropospheric Ozone Study (LISTOS) was organized to investigate ozone formation and transport in the New York City metropolitan area and locations downwind. During LISTOS, the University at Albany Atmospheric Sciences Research Center (ASRC) mobile laboratory was used for measuring surface O3, NO2, and aerosol number and mass concentration. Sharp O3 concentration gradients, with ΔO3 Δy−1 over 15 ppb km−1, were measured both at and near the land-water interface and on the highway on days characterized by high regional O3 concentrations. These large O3 gradients at or near the land-water interface, and in air masses relatively low in NO2, are shown to be influenced in part by the transport of highly oxidized air masses via sea breeze circulation and convergence with gradient flow. On the highway under regionally high O3 concentrations, strong anticorrelation (R2 = 0.78, p < 0.05) between O3 and NO2 and an absolute slope less than 1 suggested that Ox concentrations (O3 + NO2) increased with increasing NO2. Overall, the on-road measurements made during LISTOS help to better characterize the interaction between the emitted pollution and the meteorological conditions on Long Island, thereby having potential policy implications.
AB - The Long Island Sound Tropospheric Ozone Study (LISTOS) was organized to investigate ozone formation and transport in the New York City metropolitan area and locations downwind. During LISTOS, the University at Albany Atmospheric Sciences Research Center (ASRC) mobile laboratory was used for measuring surface O3, NO2, and aerosol number and mass concentration. Sharp O3 concentration gradients, with ΔO3 Δy−1 over 15 ppb km−1, were measured both at and near the land-water interface and on the highway on days characterized by high regional O3 concentrations. These large O3 gradients at or near the land-water interface, and in air masses relatively low in NO2, are shown to be influenced in part by the transport of highly oxidized air masses via sea breeze circulation and convergence with gradient flow. On the highway under regionally high O3 concentrations, strong anticorrelation (R2 = 0.78, p < 0.05) between O3 and NO2 and an absolute slope less than 1 suggested that Ox concentrations (O3 + NO2) increased with increasing NO2. Overall, the on-road measurements made during LISTOS help to better characterize the interaction between the emitted pollution and the meteorological conditions on Long Island, thereby having potential policy implications.
KW - LISTOS
KW - on-road measurements
KW - ozone gradients
KW - sea breeze
UR - https://www.scopus.com/pages/publications/85086237457
U2 - 10.1029/2019JD031961
DO - 10.1029/2019JD031961
M3 - Article
AN - SCOPUS:85086237457
SN - 2169-897X
VL - 125
JO - Journal of Geophysical Research: Atmospheres
JF - Journal of Geophysical Research: Atmospheres
IS - 11
M1 - e2019JD031961
ER -