NYC Pollen Map
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    • NYC Tree Census
street-tree

Research Interest

Medical and public health research reveal there are significant population suffering from seasonal allergy caused by pollen. Street trees are a major source of such allergen in New York City. NYC Department of Parks and Recreation has been organizing vunlenteers to measure and geo-tag all street trees, yet there is few study on how pollen by tree species having impact to local air quality. In this study we aim to visualize such risk in space (where in the city?) and time (which season?).

Methodology

I create this visualization based on NYC street tree census data in 2015. Based on our research on pollen active season and allergen severity, we further assign binary variable (1,0) for active seasons and categorical variable ('mild','moderate','severe') for allergen severity by each tree spcicies.

About me

My name is Yuan Lai (yuan.lai@nyu.edu) and I'm current persuing a Ph.D. in urban systems at NYU. My research interests include urban informatics, data science, and smart city.

Acknowledgement

I would like to thank Prof. Chris Whong for his guidence on data visualization.

Interactive data visualization on top 50 street tree species in NYC.

This interactive map visualizes all street trees in New York City, including the species name, season of generating pollen, and pollen allergen severity.
Hover on each colored tree (pollen active) for its species and neighborhood.
To filter trees with by pollen season:
Click to reset, rezoom, or show neighborhood boundary:
Visualization created by Yuan Lai, Center for Uran Science and Progress, New York University.
This webpage is built in JavaScript integrating with Bootstrap.js for html interface, Leaflet.js and CARTO for interacive mapping, and D3.js for interactive chart.