Fig 1.
(a) Heatmap showing the number of jobs, (b) Shows a heatmap of where workers live. The kernel density estimation is done with 1-km bandwidth and 100-meter pixel size. (c) Displays the distribution of workers’ residential and workplace locations at the borough level, along with the number of jobs in each borough.
Fig 2.
Home-job trips at the census block level.
(a) Heatmap Home to job mobility for block ‘X’ located in the Bronx, (b) Heatmap Home to job mobility for block ‘Y’ located in Manhattan, Kernel density estimation is done with 1-km bandwidth and 100-meter pixel size. (c) Number of destinations blocks from each origin block for 10 workers. (d) Percent of workers using public transportation for work.
Fig 3.
(a) Stations are represented by their corresponding line platforms, e.g., the 86th Street Station has three different lines, and edges ep mark the cost of transferring from one line to another within the same station. (b) Shows four different line platforms from different stations that are reachable by a transfer, denoted by the edges et. As illustrated, there are three different stations in Canal Street where interstation transfers can be made.
Fig 4.
PM2.5 concentration in the subway system.
(a) On-platform PM2.5 concentration and (b) on-train PM2.5 concentration.
Fig 5.
Personal subway PM2.5 exposure.
(a) Exposure for a sample trip from the Bronx to Downtown Manhattan (b) Exposure for a sample trip from Midtown to Downtown Manhattan.
Fig 6.
Mean per capita exposure at census block level.
Fig 7.
Spatial distribution of different racial groups in the city at census block level.
(a) percent of White workers, (b) percent of Hispanic workers, (c) percent of Black workers, (d) percent of Asian workers.
Fig 8.
Mean exposure for different race groups.
Fig 9.
Mean exposure in different income levels.
(left) Box plot shows the exposure level in different income groups, (right) relation of exposure level with poverty.