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  2. List of least-polluted cities by particulate matter ...

    en.wikipedia.org/wiki/List_of_least-polluted...

    Below is a list of 526 cities sorted by their annual mean concentration of PM2.5 (μg/m 3) in 2022. [1] [2] By default the least polluted cities which have fewest particulates in the air come first. Click on the arrows next to the table's headers to have the most polluted cities ranked first. Please note that constraints exist in this type of ...

  3. List of countries by air pollution - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_air...

    The following list of countries by air pollution sorts the countries of the world according to their average measured concentration of particulate matter in micrograms per cubic meter (μg/m 3). The World Health Organization's recommended limit is 5 micrograms per cubic meter, although there are also various national guideline values, which are ...

  4. List of countries by carbon intensity of GDP - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    World map of emission intensity (kg of CO 2 per Intl$), 2018. The following list of countries by carbon intensity of GDP sorts countries by their emission intensity.Carbon intensity or emission intensity of GDP is a measure that evaluates the amount of carbon dioxide (CO 2) emissions produced per unit of GDP.

  5. List of carbon capture and storage projects - Wikipedia

    en.wikipedia.org/wiki/List_of_carbon_capture_and...

    This List of carbon capture and storage projects provides documentation of global, industrial-scale projects for carbon capture and storage.According to the Global CCS Institute, in 2020 some 40 million tons CO 2 per year capacity of CCS was in operation with 50 million tons per year in development. [1]

  6. List of cobblestone buildings - Wikipedia

    en.wikipedia.org/wiki/List_of_cobblestone_buildings

    This is a list of cobblestone buildings, mostly houses and mostly but not all in the United States, that are notable and that reflect cobblestone architecture. Cobblestone architecture had some popularity for substantial homes and other buildings for a period, but is limited in scope of employment.

  7. Tensioned stone - Wikipedia

    en.wikipedia.org/wiki/Tensioned_stone

    Reduced embedded carbon. Post-tensioned stone causes the emission of <1/3rd of carbon dioxide greenhouse gas relative to concrete. [11] [18] Lower cost. A study of a 30-storey office block found that using PT stone floor panels was cheaper than concrete floors. [12]

  8. List of places on land with elevations below sea level

    en.wikipedia.org/wiki/List_of_places_on_land...

    This is a list of places on land below mean sea level. Places artificially created such as tunnels, mines, basements, and dug holes, or places under water, or existing temporarily as a result of ebbing of sea tide etc., are not included. Places where seawater and rainwater is pumped away are included.

  9. List of cobblestone streets - Wikipedia

    en.wikipedia.org/wiki/List_of_cobblestone_streets

    The following is a list of streets and roads which are famed or notable for being paved with cobbles (natural stone), setts (cut stone), artificial pavers (i.e. concrete or brick), or similar masonry works (natural, cut, or artificial).