Tom Kokkonen

@markoposio @jmkorhonen Sitä on selvitetty ja toistaiseksi niiden paikalleen jättäminen on se paras ratkaisu. Ei silti välttämättä täysin ongelmatonta. Ne on tällä hetkellä siellä pohjassa kohtuullisen hyvin sitoutuneena eikä lähde liikkeelle tai saastuta vettä ellei sitä pohjaa pöyhitä

@tvkokkonen @jmkorhonen Onko niiden raskasmetallien jättäminen pohjaan ongelmatonta?

Valistakaapas viisaammat, kun en tiedä aiheesta ollenkaan: Kymijoen kanava, olisiko hyvä idea?

We propose CarbonSink+ Potential to compare ecosystems' carbon uptake and aerosol production of different ecosystems by using regional aerosol formation and local negative ion measurements. Part of the ACCC Finnish flagship Special Issue Read more here: borenv.net/BER/archive/pd…

ar.copernicus.org/articles/1/81/… Tired of the old NPF classification method? Here the new Ranking method for new particle formation. It has been tested already in several locations (Hyytiala, Beijing, Milano, Tenerife) and it work pretty well. @MarkkuKulmala1 @diegoaliaga2 and many more..

jobs.helsinki.fi/job/Helsinki-U… We are hiring :)

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Please submit your Christmas lists in the correct formatting style.

New #EGUhighlights: Opinion: The strength of long-term comprehensive observations to meet multiple grand challenges in different environments and in the atmosphere doi.org/10.5194/acp-23…

The data we have for understanding (& hence improving) air quality in Europe is limited to the locations shown on the map below ⬇️ How can you help? We are looking for aerosol chemical data from additional locations to fill the gaps @PSI_LAC @ImadElHaddad4 @RI_URBANS @ACTRISRI

Discussion open for comments on @EgUsphere: Opinion: The strength of long-term comprehensive observations to meet multiple grand challenges at different environments and in the atmosphere doi.org/10.5194/egusph…

Measurements carried out at @INAR_fin clearly indicated that UV lamps used for disinfection indoors increased both gas and small particle concentrations considerably. #uvgi helsinki.fi/en/news/mathem…

.@INAR_fin aerosolifysiikkalaboratorion mittaukset näyttävät, että desinfiointiin käytettävät UV-lamput nostavat kaasujen että pienhiukkasten pitoisuuksia sisäilmassa. helsinki.fi/fi/uutiset/mat…

#BLM: Aerosols, Clusters, Greenhouse Gases, Trace Gases and Boundary-Layer Dynamics: on Feedbacks and Interactions link.springer.com/10.1007/s10546…

1/ Germicidal UV: a tradeoff between disinfection and indoor smog A Substack (blog) post with a first estimate of the magnitude of the tradeoff. TLDR: still uncertain, but GUV smog is likely to be a significant concern, needs to be carefully evaluated. jljcolorado.substack.com/p/germicidal-u…

“An expert is a person who has made all the mistakes that can be made in a very narrow field.” – Niels Bohr

Discussion open for comments: Measurement Report: Year-to-year Variability and Influence of Winter Olympics and other Special Events on Air Quality in Urban Beijing during Wintertime doi.org/10.5194/acp-20…

New article: Measurement report: A multi-year study on the impacts of Chinese New Year celebrations on air quality in Beijing, China doi.org/10.5194/acp-22…

We could finally arrange again a truly international @HyytialaHY Summer School: Formation and growth of atmospheric aerosols. Students from 7 different countries, 10 universities and 10 nationalities. Thank you all the students and teachers! @INAR_fin @KumpulaScience @helsinkiuni

A clip from Don’t Look Up, and then a real TV interview that just happened

“It’s just summer.” 🙄 twitter.com/BestForBritain…