An aerosol (abbreviation of "aero-solution") is a suspension of fine solid particles or liquid droplets in air or another gas. Aerosols can be natural or anthropogenic. Examples of natural aerosols are fog, mist, dust, forest exudates and geyser steam. Examples of anthropogenic aerosols are particulate air pollutants and smoke. The liquid or solid particles have diameters typically less than 1 μm; larger particles with a significant settling speed make the mixture a suspension, but the distinction is not clear-cut. In general conversation, aerosol usually refers to an aerosol spray that delivers a consumer product from a can or similar container. …

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Environmental and Social Impact Assessment Burkina Faso Emergency Local Development and Resilience …

World Bank Group · 6 October 2021 French

sont :  la dégradation de la qualité de l’air (aérosols, gaz et GES) souvent à l’origine de maladies negative impacts are:  degradation of air quality (aerosols, gases and GHGs), often the cause of respiratory

Hazardous/non-Hazardous Waste Management Plan Yemen Emergency Human Capital Project (P176570) (English)

World Bank Group · 20 September 2021 English

containment and treatment of volatile constituents and aerosols stripped from various unit operations in the wastewater

United in Science 2021: A multi-organization compilation of the latest climate science …

WMO · 16 September 2021 English

This report has been compiled by the World Meteorological Organization (WMO) on behalf of the United Nations Secretary-General to bring together the latest climate science related updates from a group …

of 1.0–2.0 °C, other human drivers (principally aerosols) contributed a cooling of 0.0–0.8 °C, natural gas concentrations, other human drivers due to aerosols, ozone and land-use change (land-use reflectance) influence, including emissions of greenhouse gases, aerosols and their precursors; land-use changes (land-use effect, if any, on other climate drivers. For aerosols, both direct (through radiation) and indirect changes in emissions of greenhouse gases – and aerosols were not included in the forecast models – the

Rebuilding the ozone layer: how the world came together for the ultimate …

UNEP · 15 September 2021 English

with science. In the mid-1970s, scientists warned that man-made chemicals in everyday products like aerosols, foams, refrigerators and air-conditioners were harming the ozone layer. At that time, they didn’t

that man-made chemicals in everyday products like aerosols, foams, refrigerators and air-conditioners were

Healing the Ozone Layer Through Diplomacy

IISD · 13 September 2021 English

The Montreal Protocol shows what is possible when science, diplomacy, and business cooperate to implement international environmental agreements. When the people became aware of a hole in the ozone layer …

example, the US banned non-essential use of CFCs in aerosols; Sweden, Norway, and Denmark prohibited the use systems; fire extinguishing systems; insulation; aerosols 2016 Kigali Amendment Climate Resources

Drawing light from the pandemic: a new strategy for health and sustainable …

WHO · 10 September 2021 English

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asymptomatic via the airborne route, conveyed in aerosols generated by individuals who were speaking or accepted that SARS-CoV-2 was being spread by aerosols. Therefore, the increased risks of indoor spaces

Mali - Bamako Urban Resilience Project (English)

World Bank Group · 9 September 2021 English

Kushnir, The Effects of Anthropogenic and Volcanic Aerosols and Greenhouse Gases on 20th Century Sahel Precipitation

Extreme Ozone Loss Following Nuclear War Results in Enhanced Surface Ultraviolet Radiation

PIK · 7 September 2021 English

the first time, we use a modern climate model with interactive chemistry including the effects of aerosols on photolysis rates to simulate the consequences of regional and global scale nuclear wars (injecting

interactive chemistry including the effects of aerosols on photolysis rates to simulate the consequences

A conceptual framework for cross-border impacts of climate change

PIK · 6 September 2021 English

Climate change impacts, adaptation and vulnerability studies tend to confine their attention to impacts and responses within the same geographical region. However, this approach ignores cross-border climate change impacts that …

alternative trajectories of future greenhouse gases and aerosols in the atmosphere (e.g., Ito et al., 2020), and

Are All Air Pollution Particles Equal? How Constituents and Sources of Fine …

World Bank Group · 3 September 2021 English

Global studies of the health impacts of fine particulate matter (PM2.5) have been based on particle mass, but there is evolving evidence indicating that adverse health effects can vary depending …

positively associated with warm-season PM2.5 secondary aerosols and traffic markers but negatively with soil months. In Xi’an, water-soluble and carbonaceous aerosols from coal combustion and vehicle emis- sions daily mortality than were secondary inorgan- ic aerosols. B. Short-Term Exposure to PM2.5 Sources and ambient concentrations of PM2.5 and secondary aerosols (including sul- fate, ammonium, and nitrate) secondary organic aerosols. Sulfates were not measured. The sources of primary aerosols were not estimated

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