Data: 

Data from the Street Tree Census and the  local asthma hospitalization rate will be used in this project. The 2015 Street Tree Census include details on every street tree in New York City, including specific information about the species, size and health of the trees. This data is useful for my study as the distribution and count of plane trees across the city can be studied and aggregated by zip code for comparison with  asthma hospitalization rates. Preliminary data processing identified 5 most common tree types in the City (Figure 1), and the London plane Tree was the most common of all tree types. The Street Tree Census data will be cleaned to include only London plane trees.