Nathan Hilker
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View article: Characterization of Winter Air Pollutant Gradients Near a Major Highway
Characterization of Winter Air Pollutant Gradients Near a Major Highway Open
View article: Sources, variability and parameterizations of intra-city factors obtained from dispersion-normalized multi-time resolution factor analyses of PM2.5 in an urban environment
Sources, variability and parameterizations of intra-city factors obtained from dispersion-normalized multi-time resolution factor analyses of PM2.5 in an urban environment Open
View article: Traffic-related air pollution near roadways: discerning local impacts from background
Traffic-related air pollution near roadways: discerning local impacts from background Open
Adverse health outcomes related to exposure to air pollution have gained much attention in recent years, with a particular emphasis on traffic-related pollutants near roadways, where concentrations tend to be most severe. As such, many pro…
View article: Response to Anonymous Referee # 3
Response to Anonymous Referee # 3 Open
View article: Response to Anonymous Referee # 2
Response to Anonymous Referee # 2 Open
Reply: Being that this is a methodology-focussed paper, and the primary interest is in better understanding traffic's contribution to traffic-related pollutant concentration in the near-road environment, we tend to agree with this comment.…
View article: Response to Anonymous Referee # 1
Response to Anonymous Referee # 1 Open
Of course, it makes a big difference if a roadside station is located 6 m away from the nearest traffic line or 10 m.Actually, any different position may lead to different concentrations, because the variability of air pollutant concentrat…
View article: Traffic-related air pollution near roadways: discerning local impacts from background
Traffic-related air pollution near roadways: discerning local impacts from background Open
Adverse health outcomes related to exposure to air pollution have gained much attention in recent years, with a particular emphasis on traffic-related pollutants near roadways, where concentrations tend to be most severe. As such, many pro…
View article: Supplementary material to "Traffic-related air pollution near roadways: discerning local impacts from background"
Supplementary material to "Traffic-related air pollution near roadways: discerning local impacts from background" Open
View article: Comparing emission rates derived from a model with those estimated using a plume-based approach and quantifying the contribution of vehicle classes to on-road emissions and air quality
Comparing emission rates derived from a model with those estimated using a plume-based approach and quantifying the contribution of vehicle classes to on-road emissions and air quality Open
This study presents a comparison of fleet average emission factor (s) derived from a traffic emission model with EFs estimated using plume-based measurements, including an investigation of the contribution of vehicle classes to carbon mono…
View article: Understanding the PM2.5 imbalance between a far and near-road location: Results of high temporal frequency source apportionment and parameterization of black carbon
Understanding the PM2.5 imbalance between a far and near-road location: Results of high temporal frequency source apportionment and parameterization of black carbon Open
The differences in PM2.5 concentrations between two relatively close stations, one situated near a major highway
\nand the other much more distant were used to develop a protocol for determining the impact of highway traffic
\non particula…
View article: Field Measurements of Gasoline Direct Injection Emission Factors: Spatial and Seasonal Variability
Field Measurements of Gasoline Direct Injection Emission Factors: Spatial and Seasonal Variability Open
Four field campaigns were conducted between February 2014 and January 2015 to measure emissions from light-duty gasoline direct injection (GDI) vehicles (2013 Ford Focus) in an urban near-road environment in Toronto, Canada. Measurements o…
View article: Light‐absorbing properties of ambient black carbon and brown carbon from fossil fuel and biomass burning sources
Light‐absorbing properties of ambient black carbon and brown carbon from fossil fuel and biomass burning sources Open
The optical properties of ambient black carbon‐containing particles and the composition of their associated coatings were investigated at a downtown site in Toronto, Canada, for 2 weeks in June 2013. The objective was to assess the relatio…