Tuesday, January 30, 2024
Monday, January 29, 2024
Sunday, January 28, 2024
Saturday, January 27, 2024
Friday, January 26, 2024
Tuesday, January 23, 2024
Monday, January 22, 2024
Friday, January 19, 2024
Thursday, January 18, 2024
Wednesday, January 17, 2024
Tuesday, January 16, 2024
Saturday, January 13, 2024
Thursday, January 11, 2024
Wednesday, January 10, 2024
Humor in Pollution - IPCC Code Red
IPCC Code Red! Sharing from the archives, a cartoon was drawn live during COP26, now a part of my book 'Pugmarks and Carbon Footprints': https://t.co/qJyikVlAKR#cop28 #un #cartoons #climatejustice #climatechange #disasters #africa #middleeast #europe #USA #greenhumour #asia pic.twitter.com/llG2rJRIZ7
— Green Humour (@thetoonguy) December 1, 2023
Humor in Pollution - NBS
Summarising #naturebasedsolutions at the @COP28_UAE @copreshub session on NBS, moderated by @ConservationOrg . A fun moment that this cartoon sparked off at the session was a speaker remarking that "the Australian in her loves the cartoon"! 😃 Thanks, @grp_resilience pic.twitter.com/l8vJ9odIBI
— Green Humour (@thetoonguy) December 9, 2023
Humor in Pollution - GROSS domestic Product
GDP and the #environment. Cartoon drawn live during a @COP28_UAE @copreshub session on transformative leverage for biosphere resilience for @grp_resilience#biodiversity #biosphere #gdp #resilience #climatechange #climateaction #pollution #water #sustainability #greenhumour pic.twitter.com/3ISK7IjtZM
— Green Humour (@thetoonguy) December 18, 2023
Humor in Pollution - Atmospheric Chemistry in French Comic Books
Click here for more on the atmospheric chemistry in French comic books (Courtesy: Atmospheric Chemistry Modeling Group, SEAS, Harvard University)
Tuesday, January 09, 2024
Saturday, January 06, 2024
Wednesday, January 03, 2024
Monday, January 01, 2024
Infograph - How the bottom-up source apportionment process works?
Infograph - How the top-down source apportionment process works?
Infographic - What is the difference between primary and secondary particulate matter?
Primary is a direct emission source and forms a significant portion of the PM pollution, comprising of metals, elemental carbon (also known as black carbon), and organic carbon. Other primary pollutants include sulfur dioxide, nitrogen oxides, volatile hydrocarbons, methane, carbon monoxide, and carbon dioxide.
Secondary is due to chemical transformation of primary gaseous emissions. In PM, the secondary aerosol components include sulfates from sulfur dioxide emissions, nitrates from nitrogen oxide emissions, organic aerosols from hydrocarbon emissions, and ammonium from ammonia emissions. The path and the quantity of chemical transformation depends on the strength of the pollutant emissions and the mix of the emissions. In an atmospheric chemical mechanism, these interlinkages can run into 300 equations. Other secondary pollutants include ozone – a result of a mix of reactions between nitrogen oxides and hydrocarbon emissions in the presence of sunlight.
More such questions are answered in SIM-series # 44-2021 - 10 frequently asked questions on particulate matter (PM)
Infographic - What is the difference between fine and coarse particulate matter?
There is constant confusion between PM2.5 vs. PM10 and “fine vs. coarse” fractions of particulate matter. The schematic above presents an overview of what is part of each of these fractions and they are broadly defined like this
- PM2.5 – this is all the particulate matter under 2.5 um
- PM10 – this is all the particulate matter under 10.0 um
- Fine PM – this is all the particulate matter under 2.5 um, which is same of PM2.5
- Coarse PM – this is all the particulate matter between 2.5 and 10 um
