Table 2.
Existing metrics
| Existing Metrics | Geographic Extent | Spatial Resolution | Time Periods | Description | Ref. |
|---|---|---|---|---|---|
| Air Pollution | |||||
| Surface concentrations of PM2.5 | National | 1 km | 1998 to present | Satellite-derived annual mean concentration | [27 |
| Ambient concentrations of NO2 | National | <100 m | 1984–2012 | National land use regression model of annual mean concentration, based on 2011 data and adjusted for historical estimates | [28] |
| Ambient concentrations of NO2 | National | <100 m | 1984–2006 | National model of annual mean concentration based on 10 city-specific land use regression models (field monitoring between 2002 and 2010) and adjusted using observational data for each year | [29] |
| Ambient concentrations of O3 | National | 10 km - 21 km | 2003 - present | Air quality forecast-based estimate, adjusted with surface observation data - annual and monthly average concentration | [30] |
| Ambient concentrations of SO2 | National | 30 km | 2005–2015 | Air quality model-based estimate of 3-year running annual average concentration | [32] |
| Noise Pollution | |||||
| A-weighted sound pressure level and related summary metrics | Regional (Montreal) | 10 m | ~ 2014 | Land use regression-based model based on field monitoring conducted 2010–2014 | [33] |
| A-weighted sound pressure level and related summary metrics | Regional (Toronto) | 10 m | ~ 2013 | Land use regression-based model based on field monitoring conducted 2012–2013 | [34] |
| A-weighted sound pressure level and related summary metrics | Regional (Vancouver) | 10 m | 2003 | Sound propagation model (CadnaA) | [36] |
| Greenness | |||||
| Normalized Difference Vegetation Index | National + | 30 m | 1985 to present | Satellite-derived (Landsat) | [37, 38] |
| Normalized Difference Vegetation Index | National + | 250 m | 2000 to present | Satellite-derived (MODIS) | [39] |
| Normalized Difference Vegetation Index | National + | 1 km | 1979 to present | Satellite-derived (AVHRR) | [40, 41] |
| Green View Index | National | Postal code-specific | 2017 only | Google Street View-derived | not published (or use MIT) |
| Climate and Weather | |||||
| Temperature metrics (daily, monthly, annual averages, ranges, event frequencies) and derived water balance metrics (potential and actual evapotranspiration) | National | 10 km | 1950–2010 | Interpolated continuous surfaces based on observation station data | [42] |
| Temperature metrics (max, min, mean, heat deg. days, cool deg. days), total precipitation, snow on ground | National | N/A | 1950- to present | National Climate Data and Information Archive - observation station data | [43] |
| Neighbourhood Factors | |||||
| Walkability | National | Postal code-specific | circa 2015 | GIS-derived walkability (based on land use mix, street connectivity and population density) | [47] |
| Walkability | Regional | Postal code-specific | various specific years | GIS-derived walkability (land-use mix, residential density, and street connectivity) | [48] |
| Canadian Marginalization Deprivation Index | National | Census dissemination area | Census years 1991–2011 | Derived from census variables | [49 |
| Pampalon Deprivation Index | National | Census dissemination area | Census years 1991–2011 | Derived from census variables | [50] |
| Nighttime light | National + | 1 km | 1992 to present | Satellite-derived from the US Defense Meteorological Satellite Program’s Operational Linescan System (DMSP-OLS) - annual average | [51] |