{"chart":{"title":"Deaths attributed to household air pollution vs. deaths attributed to ambient air pollution","subtitle":"Estimated annual number of deaths attributed to household and ambient air pollution per100,000 people.","note":"To allow for comparisons between countries and over time, this metric is age-standardized.","citation":"World Health Organization","originalChartUrl":"https://ourworldindata.org/grapher/deaths-attributed-to-household-air-pollution-vs-deaths-attributed-to-ambient-air-pollution","selection":[]},"columns":{"3.9.1 - Age-standardized mortality rate attributed to household air pollution (deaths per 100,000 population) - SH_HAP_ASMORT":{"titleShort":"Deaths attributed to household air pollution","titleLong":"Deaths attributed to household air pollution","descriptionShort":"Age-standardized mortality rate attributed to household air pollution (deaths per 100,000 population).","shortUnit":"","unit":"per 100,000 population","timespan":"2019-2019","type":"Integer","owidVariableId":1303332,"shortName":"_3_9_1__sh_hap_asmort","lastUpdated":"2026-07-31","nextUpdate":"2027-07-31","citationShort":"World Health Organization – processed by Our World in Data","citationLong":"World Health Organization – processed by Our World in Data. “Deaths attributed to household air pollution” [dataset]. World Health Organization, “Global Health Observatory (GHO), World Health Organisation (WHO)” [original data].","fullMetadata":"https://api.ourworldindata.org/v1/indicators/1303332.metadata.json"},"3.9.1 - Age-standardized mortality rate attributed to ambient air pollution (deaths per 100,000 population) - SH_AAP_ASMORT":{"titleShort":"Deaths attributed to ambient air pollution","titleLong":"Deaths attributed to ambient air pollution","descriptionShort":"Age-standardized mortality rate attributed to ambient air pollution (deaths per 100,000 population).","shortUnit":"","unit":"per 100,000 population","timespan":"2019-2019","type":"Integer","owidVariableId":1303331,"shortName":"_3_9_1__sh_aap_asmort","lastUpdated":"2026-07-31","nextUpdate":"2027-07-31","citationShort":"World Health Organization – processed by Our World in Data","citationLong":"World Health Organization – processed by Our World in Data. “Deaths attributed to ambient air pollution” [dataset]. World Health Organization, “Global Health Observatory (GHO), World Health Organisation (WHO)” [original data].","fullMetadata":"https://api.ourworldindata.org/v1/indicators/1303331.metadata.json"},"Population (historical)":{"titleShort":"Population","titleLong":"Population","descriptionShort":"Population by country, available from 10,000 BCE to 2023, based on data and estimates from different sources.","descriptionKey":"- Population is the most commonly used metric throughout Our World in Data. It is used directly to understand population growth over time, and indirectly to calculate per-capita indicators, making it easier to compare countries of different sizes.\n- We construct this indicator by combining multiple sources covering different periods.\n  - HYDE v3.3 (2023): historical estimates from 10,000 BCE to 1799.\n  - Gapminder v7 (2022): for 1800-1949.\n  - UN World Population Prospects (2024): for 1950 onwards, including 2100 projections.\n  - Gapminder Systema Globalis (2023): additional source for former countries (Yugoslavia, USSR, etc.)\n- Breaks in the data may occur at the boundaries between sources due to their methodological differences.\n- You can read more about the sources and methodology in our [dedicated article](https://ourworldindata.org/population-sources). We also provide a table of sources showing the source we use for each country-year.\n- We calculate geographical aggregates (continents, income groups, etc.) by summing individual country populations. For years before 1800, we rely directly on HYDE's values for continents to ensure historical consistency.","descriptionProcessing":"### Combination of different sources\nWe construct our long-run population data by combining multiple sources:\n\n- 10,000 BCE–1799: historical estimates by HYDE (v3.3).\n\n- 1800–1949: historical estimates by Gapminder (v7).\n\n- 1950–2023: population records from the United Nations World Population Prospects (2024 revision).\n\n**Geographical aggregates**\n\n- For most years, we calculate aggregates by summing the population of member countries.\n- We do this based on [our definition of continents](https://ourworldindata.org/world-region-map-definitions#our-world-in-data) and the [World Bank’s income groups](https://ourworldindata.org/grapher/world-bank-income-groups).\n- The only exception is before 1800, where we use HYDE's estimates for continents (but not income groups).\n\nFor most of the years, we've estimated regional aggregates by summing the population of countries in each region. We've relied on [our continents](https://ourworldindata.org/world-region-map-definitions#our-world-in-data) and [World Bank income group definitions](https://ourworldindata.org/grapher/world-bank-income-groups). The only exception is before 1800, where we've used HYDE's estimates on continents (but not income groups).\n\n**World**\n- Before 1800: we use data from HYDE.\n- 1800-1950: we estimate the global population by summing all available countries in the dataset.\n- After 1950, we rely on estimates from the United Nations World Population Prospects.","shortUnit":"","unit":"people","timespan":"-10000-2023","type":"Integer","owidVariableId":953903,"shortName":"population_historical","lastUpdated":"2024-07-15","nextUpdate":"2026-12-15","citationShort":"HYDE (2023); Gapminder (2022); UN WPP (2024) – with major processing by Our World in Data","citationLong":"HYDE (2023); Gapminder (2022); UN WPP (2024) – with major processing by Our World in Data. “Population – HYDE, Gapminder, UN – Long-run data” [dataset]. PBL Netherlands Environmental Assessment Agency, “History Database of the Global Environment 3.3”; Gapminder, “Population v7”; United Nations, “World Population Prospects”; United Nations, “World Population Prospects – Interim Update”; Gapminder, “Systema Globalis” [original data].","fullMetadata":"https://api.ourworldindata.org/v1/indicators/953903.metadata.json"},"World region according to OWID":{"titleShort":"World region according to OWID","titleLong":"World region according to OWID","descriptionShort":"Regions defined by Our World in Data, which are used in OWID charts and maps.","unit":"","timespan":"2023-2023","type":"Continent","owidVariableId":900801,"shortName":"owid_region","lastUpdated":"2023-01-01","citationShort":"Our World in Data","citationLong":"Our World in Data. “World region according to OWID” [dataset]. Our World in Data, “Regions” [original data].","fullMetadata":"https://api.ourworldindata.org/v1/indicators/900801.metadata.json"}},"dateDownloaded":"2026-10-31"}