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. 2020 Jul 8;17(14):4914. doi: 10.3390/ijerph17144914

Table 1.

List of the explanatory variables and their descriptive statistics.

Variables Acronym Unit Data Range
Meteorological Condition
Wind direction WDIR degrees (°) 163.3 ± 101.9
Wind speed WSP kilometer per hour 15.6 ± 10.1
Wind gust GST kilometer per hour 6.4 ± 16.6
Temperature T Celsius degree (°C) 9.2 ± −9.6
Dew point H Celsius degree (°C) 3.8 ± −8.5
Proximity to Emission Sources
Distance to major roads Dismajor meter 664.8 ± 269.2
Distance to minor roads Disminor meter 8.1 ± 22.1
Distance to bus stops Disbus meter 67.2 ± 55.2
Urban Morphology
Wind Wedge
Vegetation footprint VegFpwedge square meter 1,190,152.0 ± 753,784.7
Building footprint BuildFpwedge square meter 447,183.3 ± 264,025.7
Vegetation height VegHtwedge meter 0.9 ± 0.4
Building height BuildHtwedge meter 0.5 ± 0.4
Circular Buffer
Vegetation footprint VegFpbuffer square meter 14,845,468.9 ± 10,916,456.3
Building footprint BuildFpbuffer square meter 5,880,245.9 ± 3,449,631.6
Vegetation height VegHtbuffer meter 0.9 ± 0.2
Building height BuildHtbuffer meter 0.6 ± 0.4