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How to use the State of Global Air interactive data


Welcome! Here you can find out how to create, explore, and download data:

  1. Create plots that compare air quality or health impacts
  2. Download plots and their data
  3. Create global maps of air quality and health impacts
  4. View or download tables with air quality and health impact data

Abbreviations and Regions used in the data tables that are not self-evident are listed at the bottom of this page.
Please refer to the Glossary for additional information.

 

Part 1: Create plots that compare air quality or health impacts

1. Select either the “Air Quality” or “Health Impact” tab. (“Air Quality” is set as the default.) When a tab is selected, the text color is red and the tab is underlined.

choose air quality or health

2. Use the menu on the left side of the screen to define the parameters of your search. Parameters are pollutant, country, comparison region, and sub-comparison region, as illustrated here. These parameters are available for both the Air Quality and the Health Impact data. 

Choose pollutant or country            Select comparison region

The health impact search has an additional category for measures of health burden: a choice between deaths (numbers or rates) and disability-adjusted life-years (DALYs). These terms are defined in the Glossary and explained in more detail in the Report.

3. Compare with other regions and sub-regions. When you select a country, by default the comparison region is GBD region, and the sub-region is the specific GBD sub-region the selected country falls into. For example, if you select Afghanistan in the “Choose a country” dropdown menu, the default GBD sub-region is South Asia. The left-hand plot will display data for the chosen country, and the right-hand plot will display the data for all countries in the selected region/sub-region.

4. If you are interested in changing the comparison region, click on the “Select comparison region” dropdown menu, and select a new region or grouping. The other comparison options are GBD regions, GBD super-regions, World Health Organization regions, Country, Four World Regions, Socio-Demographic Index groupings, United Nations Regional Commission regions, World Bank regions, and World Bank Income Levels. More information on these regions or groupings and the countries they include can be found below. To view plots and data for multiple sub-regions, click within the sub-region box and select additional sub-regions.

5. You can compare your selected country to another country or countries by clicking “Country” in the comparison region dropdown menu, and then by clicking within the sub-region box and selecting additional countries.

Select comparison region

6. To add a line representing global mean levels to any plot, select the “Add global means” check-box underneath the left plot.

7. If you are interested in specific data points, you can hover over the plotted dots to view specific numerical values.

8. You can also zoom in by drawing a box around the points of interest using your mouse cursor. To zoom out, press the “Reset zoom” button in the upper right-hand corner of the plot.

 

 

 

Part 2: Download plots and their data

There are a number of ways to download both the plots and the data you viewed in part 1, as follows:

1. To download the image of a plot, select the download icon on the top right side of the plot for a menu of options.

2. Select the image download type of your choice — either “PNG image” or “JPEG image.”

3. If you are interested in downloading the raw data you see in the plot, select the hamburger menu, and select “Download CSV” (comma separated value, which can be opened in Excel and similar programs).

download png, jpeg, or csv file

4. Both the left and right plots are available for image or data downloading.

 

 

Part 3: Create global maps of air quality and health impacts

You can create interactive maps that show either air quality or health impact data for 2015, as follows:

1. When the site opens, it is set to “Plots” by default. Switch to maps by selecting “Maps” from the tabbed menu above the plots.

2. Air quality maps can display levels of annual average, population-weighted PM2.5 (ambient particulate matter pollution) or ozone (ambient ozone pollution). PM2.5 is the default pollutant. To change the pollutant, use the “Select Pollutant” dropdown menu.

3. Health impact maps offer four different health impact metrics: number of deaths, number of DALYs, death rates, and DALY rates. Choose one in the dropdown menu.

4. View the map that launches when the “Maps” tab is selected (see example below). The map includes the entire world. Each country is color-coded for a range of pollutant concentrations. The color code is described (including units) in the key to the left of the map. A range of 15–30 µg/m3 for PM2.5 should be read as 15 to < 30 µg/m3, for example. For ozone, the ranges are given in units of ppb (parts per billion).”

map example

5. On any map, placing your cursor over a specific country on the map will pop up the 2015 data related to that map, either your selected pollutant (PM2.5 or ozone) or selected measure of health impact (deaths or DALYs).

6. Zoom in and out on the map using the plus and minus buttons on the top left side of the map. To zoom in on a specific region, place your cursor in that area before clicking on the plus button. You can drag the map horizontally and vertically after zooming in. To zoom in on another region, zoom out first and move your cursor to the area of interest before zooming in again. You can also use the scroll wheel on your mouse instead of using the plus and minus buttons.

7. If you are interested in downloading the map image, use the download icon above the upper-right corner (shown here) and select either the PNG image or JPEG image.

download PNG or JPEG file

 

 

Part 4: View or download tables with air quality and health impact data

All of the data used to create the line plots are available for searching, sorting, and downloading. The tables include data for all years (1990–2015), including  the 95% upper and lower uncertainty intervals for the mean air quality and health impact measures.

1. When the site opens, it is set to “Plots” by default. Switch to tables by selecting “Tables” from the tabbed menu above the plots. 

2. For a table of air quality data or health impact data, set all parameters as you would for creating the plots (see Part 1). The table will display the data based on the parameters selected. For example, if the country of Afghanistan is selected, along with GBD regions, the subregion is automatically South Asia; data for all other countries in South Asia will appear in the data table. You can use the arrows at the top of each column to sort the data.

3. Use the “Select columns” button to hide columns you do not wish to view.

4. Use the search function at the top right to find a particular country or show data for a particular year.

5. To download the table, use the button below the table. Note that the entire data table will download, even if you have used the search function to display one selection only.

table example

 

Abbreviations

Abbreviation Definition
ISO3 Three-letter country codes published by the International Organization for Standardization, to represent countries, dependent territories, and special areas of geographical interest.
lower_[unit] Lower 95% uncertainty interval of exposure to PM2.5 [µg/m3] or ozone [ppb].
mean_[unit] PM2.5: Population-weighted annual average, or mean, concentration [µg/m3]. 
Ozone: Seasonal average, population-weighted concentration [ppb].
upper_[unit] Upper 95% uncertainty interval of exposure to PM2.5 [µg/m3] or ozone [ppb].
bur_lower Lower 95% uncertainty interval of health burden (death or DALYs or their rates) due to PM2.5 or ozone exposure.
bur_mean Average health burden (deaths or DALYs or their rates) due to PM2.5 or ozone exposure.
bur_upper Upper 95% uncertainty interval of health burden (death or DALYs or their rates) due to PM2.5 or ozone exposure.

 

Regions, sub-regions, and other groupings

Regions Description
GBD regions IHME created 21 GBD regions based on two criteria: epidemiological similarity and geographical closeness. The regions and the countries included in them can be found on the IHME website.
GBD super-regions IHME established seven super-regions, which group regions on the basis of cause of death patterns, as follows: High income; Latin America & Caribbean; Sub-Saharan Africa; North Africa & Middle East; South East Asia, East Asia & Oceania; South Asia; Central Europe, Eastern Europe & Central Asia.
GBD Socio-Demographic Income (SDI) groupings High SDI, high-middle SDI, middle SDI, low-middle SDI, low SDI
World Health Organization regions African region (AFRO), European region (EURO), Region of the Americas (PAHO), South-East Asia Region (SEARO), Western Pacific Region (WPRO), Eastern Mediterranean Region (EMRO) 
Four World regions Four global regions used in the IHME analyses: Asia, Africa, America, Europe
United Nations Regional Commission regions Economic and Social Commission for Asia and the Pacific (ESCAP), European Club Association (ECA), Economic Commissions for Europe (ECE), Economic Commission for Latin America and the Caribbean (ECLAC), Economic and Social Commission for Western Asia (ESCWA)
World Bank regions South Asia, East Asia and Pacific, Europe and Central Asia, Latin America and Caribbean, Middle East and North Africa, Sub-Saharan Africa. The regions and the countries included in them can be found on the World Bank website.
World Bank Income Levels High income, Upper middle income, Lower middle income, Low income.