Jeroen E. Sonke PhD
@jeroensonke.bsky.social
Senior Scientist at CNRS and University of Toulouse, working on mercury and plastic pollution Mon-Fri. Surfing on Weekends.
Pinned
Global environmental plastic dispersal under OECD policy scenarios toward 2060
Global plastic pollution budget finds most historical plastic waste on land, indicating need for remediation policy instruments.
www.science.org
Our new study looking at @oecd-env.bsky.social plastic policy scenarios and global environmental #plastic dispersal is out:
www.science.org/doi/10.1126/...
New global budget; much plastic in marine sediments; most plastic on land; land cleanup needed to achieve lower exposure by 2060
@cnrs.fr
www.science.org/doi/10.1126/...
New global budget; much plastic in marine sediments; most plastic on land; land cleanup needed to achieve lower exposure by 2060
@cnrs.fr
Oskar Hagelskjaer from Microplastic Solution (microplasticsolution.com) leads our new study on a volume approximation for small #microplastic fragments. Volume models are key to convert MP counts to MP mass concentrations. We empirically find: V = 0.097L^3
mdpi.com/2673-8929/4/...
A thread:
mdpi.com/2673-8929/4/...
A thread:
October 30, 2025 at 7:34 AM
Oskar Hagelskjaer from Microplastic Solution (microplasticsolution.com) leads our new study on a volume approximation for small #microplastic fragments. Volume models are key to convert MP counts to MP mass concentrations. We empirically find: V = 0.097L^3
mdpi.com/2673-8929/4/...
A thread:
mdpi.com/2673-8929/4/...
A thread:
We are launching @cnrs.fr a new open access #microplastics database, called #MPsizeBase, which aligns MP concentration data of different size ranges, to make studies intercomparable.
Preprint: eartharxiv.org/repository/v...
MPsizeBase: get.omp.eu/mpsizebase/
Upload your new data!
Quiz+🧵below:
Preprint: eartharxiv.org/repository/v...
MPsizeBase: get.omp.eu/mpsizebase/
Upload your new data!
Quiz+🧵below:
October 27, 2025 at 5:01 PM
We are launching @cnrs.fr a new open access #microplastics database, called #MPsizeBase, which aligns MP concentration data of different size ranges, to make studies intercomparable.
Preprint: eartharxiv.org/repository/v...
MPsizeBase: get.omp.eu/mpsizebase/
Upload your new data!
Quiz+🧵below:
Preprint: eartharxiv.org/repository/v...
MPsizeBase: get.omp.eu/mpsizebase/
Upload your new data!
Quiz+🧵below:
our @egu.eu study on the Mediterranean #Plastics budget, led by Théo Segur, is out today:
bg.copernicus.org/articles/22/...
We find: 98.5% of MMPW still on land; 1.5% reached the MedSea; most MMPW from S-Europe, not Africa; land cleanup needed!
#PlasticsTreaty #INC5
@utoulouse.bsky.social @cnrs.fr
bg.copernicus.org/articles/22/...
We find: 98.5% of MMPW still on land; 1.5% reached the MedSea; most MMPW from S-Europe, not Africa; land cleanup needed!
#PlasticsTreaty #INC5
@utoulouse.bsky.social @cnrs.fr
Terrestrial and marine plastic pollution outlook in the Mediterranean region: a box-model approach based on OECD policy scenarios
Abstract. Plastic pollution in the Mediterranean Sea and catchment raises serious concerns for ecosystem and human health. Plastic dispersal from Mediterranean watersheds in southern Europe, northern ...
bg.copernicus.org
September 30, 2025 at 10:38 AM
our @egu.eu study on the Mediterranean #Plastics budget, led by Théo Segur, is out today:
bg.copernicus.org/articles/22/...
We find: 98.5% of MMPW still on land; 1.5% reached the MedSea; most MMPW from S-Europe, not Africa; land cleanup needed!
#PlasticsTreaty #INC5
@utoulouse.bsky.social @cnrs.fr
bg.copernicus.org/articles/22/...
We find: 98.5% of MMPW still on land; 1.5% reached the MedSea; most MMPW from S-Europe, not Africa; land cleanup needed!
#PlasticsTreaty #INC5
@utoulouse.bsky.social @cnrs.fr
The fall of the #PlasticPonzi scheme starts when victims claim justice and stop investing and negociating with spoiler group economies. Keep up the fight tonight at #InC5.2 #PlasticTreaty and keep faith: every Ponzi scheme carries the certainty of its own downfall:
www.nature.com/articles/s44...
www.nature.com/articles/s44...
August 14, 2025 at 8:35 PM
The fall of the #PlasticPonzi scheme starts when victims claim justice and stop investing and negociating with spoiler group economies. Keep up the fight tonight at #InC5.2 #PlasticTreaty and keep faith: every Ponzi scheme carries the certainty of its own downfall:
www.nature.com/articles/s44...
www.nature.com/articles/s44...
Reposted by Jeroen E. Sonke PhD
On 5 August, the final act of the #PlasticsTreaty negotiations resumes in Geneva.
The big question? Not what’s in the treaty, but whether negotiators will have the courage to move ahead without spoilers. 🧵
The big question? Not what’s in the treaty, but whether negotiators will have the courage to move ahead without spoilers. 🧵
July 31, 2025 at 11:27 AM
On 5 August, the final act of the #PlasticsTreaty negotiations resumes in Geneva.
The big question? Not what’s in the treaty, but whether negotiators will have the courage to move ahead without spoilers. 🧵
The big question? Not what’s in the treaty, but whether negotiators will have the courage to move ahead without spoilers. 🧵
Reposted by Jeroen E. Sonke PhD
Six days left.
The #PlasticsTreaty talks are — again — drowning in brackets.
Take control of the pen. Or watch the deal disappear into a black hole.
medium.com/points-of-or...
The #PlasticsTreaty talks are — again — drowning in brackets.
Take control of the pen. Or watch the deal disappear into a black hole.
medium.com/points-of-or...
Ink Wars, Episode 5.2 — Return of the Brackets
GENEVA, 8 AUGUST 2025: If the Intergovernmental Negotiating Committee on plastic pollution had a face, it would mirror mission commander…
medium.com
August 8, 2025 at 6:57 AM
Six days left.
The #PlasticsTreaty talks are — again — drowning in brackets.
Take control of the pen. Or watch the deal disappear into a black hole.
medium.com/points-of-or...
The #PlasticsTreaty talks are — again — drowning in brackets.
Take control of the pen. Or watch the deal disappear into a black hole.
medium.com/points-of-or...
Reposted by Jeroen E. Sonke PhD
📄 Open Access in Cambridge Prisms: Plastics
doi.org/10.1017/plc....
Why a strong global #plasticstreaty is essential for #agricultural systems, #food safety, food security and human #health
#INC5.2 #microplastics
@smbrander.bsky.social @kristiansyberg.bsky.social
doi.org/10.1017/plc....
Why a strong global #plasticstreaty is essential for #agricultural systems, #food safety, food security and human #health
#INC5.2 #microplastics
@smbrander.bsky.social @kristiansyberg.bsky.social
Why a strong global plastics treaty is essential for agricultural systems, food safety, food security and human health | Cambridge Prisms: Plastics | Cambridge Core
Why a strong global plastics treaty is essential for agricultural systems, food safety, food security and human health - Volume 3
doi.org
July 12, 2025 at 7:25 AM
📄 Open Access in Cambridge Prisms: Plastics
doi.org/10.1017/plc....
Why a strong global #plasticstreaty is essential for #agricultural systems, #food safety, food security and human #health
#INC5.2 #microplastics
@smbrander.bsky.social @kristiansyberg.bsky.social
doi.org/10.1017/plc....
Why a strong global #plasticstreaty is essential for #agricultural systems, #food safety, food security and human #health
#INC5.2 #microplastics
@smbrander.bsky.social @kristiansyberg.bsky.social
Luisa Malberti leads our new methyl#mercury #isotope study. We measure a 14 permil carbon isotope fractionation from C substrate to CH3Hg during biotic methylation. Another small step in using C isotopes to trace CH3Hg origins
www.nature.com/articles/s41...
@cnrs.fr
@ird-fr.bsky.social
www.nature.com/articles/s41...
@cnrs.fr
@ird-fr.bsky.social
Methylmercury carbon isotope fractionation during biotic methylation by the bacterial BerOc1 strain - npj Clean Water
npj Clean Water - Methylmercury carbon isotope fractionation during biotic methylation by the bacterial BerOc1 strain
www.nature.com
August 4, 2025 at 10:21 AM
Luisa Malberti leads our new methyl#mercury #isotope study. We measure a 14 permil carbon isotope fractionation from C substrate to CH3Hg during biotic methylation. Another small step in using C isotopes to trace CH3Hg origins
www.nature.com/articles/s41...
@cnrs.fr
@ird-fr.bsky.social
www.nature.com/articles/s41...
@cnrs.fr
@ird-fr.bsky.social
Reposted by Jeroen E. Sonke PhD
Air sampling in homes and cars indicates adults may inhale approximately 68,000 lung-penetrating microplastic particles daily, with over 90% of detected particles small enough to reach deep into the lungs. doi.org/g9vq77
Measurements suggest we inhale 68,000 lung-penetrating microplastics daily in our homes and cars
New measurements of fine microplastic particles suspended in the air in homes and cars suggest that humans may be inhaling far greater amounts of lung-penetrating microplastics than previously thought.
phys.org
July 31, 2025 at 1:47 AM
Air sampling in homes and cars indicates adults may inhale approximately 68,000 lung-penetrating microplastic particles daily, with over 90% of detected particles small enough to reach deep into the lungs. doi.org/g9vq77
Reposted by Jeroen E. Sonke PhD
"The microplastic (MP) 1–10 μm exposure estimates are 100-fold higher than previous estimates that were extrapolated from larger MP sizes, and suggest that the health impacts of MP inhalation may be more substantial than we realize."
journals.plos.org/plosone/arti...
journals.plos.org/plosone/arti...
Human exposure to PM10 microplastics in indoor air
The ubiquitous presence of airborne microplastics (MPs) in different indoor environments prompts serious concerns about the degree to which we inhale these particles and their potential impact on huma...
journals.plos.org
July 30, 2025 at 6:18 PM
"The microplastic (MP) 1–10 μm exposure estimates are 100-fold higher than previous estimates that were extrapolated from larger MP sizes, and suggest that the health impacts of MP inhalation may be more substantial than we realize."
journals.plos.org/plosone/arti...
journals.plos.org/plosone/arti...
Nadiia Yakovenko leads our new indoor #PM10 #microplastic human exposure study. Inhalation of 68000 fine MP per day is a major plastic additive infiltration route. #PlasticsTreaty #INC5.2 #PlasticPonzi solutions? Limit production, replace, manage waste... journals.plos.org/plosone/articl…
@cnrs.fr
@cnrs.fr
July 31, 2025 at 6:53 AM
Nadiia Yakovenko leads our new indoor #PM10 #microplastic human exposure study. Inhalation of 68000 fine MP per day is a major plastic additive infiltration route. #PlasticsTreaty #INC5.2 #PlasticPonzi solutions? Limit production, replace, manage waste... journals.plos.org/plosone/articl…
@cnrs.fr
@cnrs.fr
Reposted by Jeroen E. Sonke PhD
🔥 Powerful research calls plastic production a "Ponzi scheme" - benefits now, environmental costs later. Future generations face 6x higher microplastic exposure even under the best policies. Time to break the cycle at UN treaty talks this August. #PlasticTreaty #Microplastics #PlasticPollution
Plastic Ponzi scheme - npj Emerging Contaminants
npj Emerging Contaminants - Plastic Ponzi scheme
www.nature.com
July 11, 2025 at 5:47 PM
🔥 Powerful research calls plastic production a "Ponzi scheme" - benefits now, environmental costs later. Future generations face 6x higher microplastic exposure even under the best policies. Time to break the cycle at UN treaty talks this August. #PlasticTreaty #Microplastics #PlasticPollution
Reposted by Jeroen E. Sonke PhD
📣 npj emerging contaminants has launched its first content!
This new, open-access journal covers addressing the source-to-impact continuum, alongside innovations for detection and control of emerging contaminants.
👉Read a new comment on plastic pollution here:
www.nature.com/articles/s44...
This new, open-access journal covers addressing the source-to-impact continuum, alongside innovations for detection and control of emerging contaminants.
👉Read a new comment on plastic pollution here:
www.nature.com/articles/s44...
Plastic Ponzi scheme - npj Emerging Contaminants
npj Emerging Contaminants - Plastic Ponzi scheme
www.nature.com
July 10, 2025 at 1:15 PM
📣 npj emerging contaminants has launched its first content!
This new, open-access journal covers addressing the source-to-impact continuum, alongside innovations for detection and control of emerging contaminants.
👉Read a new comment on plastic pollution here:
www.nature.com/articles/s44...
This new, open-access journal covers addressing the source-to-impact continuum, alongside innovations for detection and control of emerging contaminants.
👉Read a new comment on plastic pollution here:
www.nature.com/articles/s44...
#PlasticPonzi Scheme, our new comment ahead of Aug25 Geneva #INC5 #PlasticTreaty negotiations: Unsustainable plastic production is possible because economic activities are distanced, spatially and temporally, from environmental impacts
www.nature.com/articles/s44...
@cnrs.fr
@univie.ac.at
www.nature.com/articles/s44...
@cnrs.fr
@univie.ac.at
Plastic Ponzi scheme - npj Emerging Contaminants
npj Emerging Contaminants - Plastic Ponzi scheme
www.nature.com
July 10, 2025 at 2:18 PM
#PlasticPonzi Scheme, our new comment ahead of Aug25 Geneva #INC5 #PlasticTreaty negotiations: Unsustainable plastic production is possible because economic activities are distanced, spatially and temporally, from environmental impacts
www.nature.com/articles/s44...
@cnrs.fr
@univie.ac.at
www.nature.com/articles/s44...
@cnrs.fr
@univie.ac.at
Theo Segur @universitetoulouse.bsky.social and Géoscience Environnement Toulouse wins the 1st prize for best poster presentation at the 2025 GDR PES 'plastics, environment & health' meeting in Bordeaux. Big tx to all organizers and participants for a very stimulating meeting
@cnrs.fr
@cnrs.fr
July 3, 2025 at 4:40 PM
Theo Segur @universitetoulouse.bsky.social and Géoscience Environnement Toulouse wins the 1st prize for best poster presentation at the 2025 GDR PES 'plastics, environment & health' meeting in Bordeaux. Big tx to all organizers and participants for a very stimulating meeting
@cnrs.fr
@cnrs.fr
Dong Peng & Yanxu Zhang lead our new global river #mercury study out in www.science.org/doi/10.1126/...
Using the #DigitalTwin Land #CESM2 model we find the modern human-impacted Hg flux to be 2-3 fold higher than the pre-industrial river Hg flux of 390 Mg/y
@cnrs.fr
Using the #DigitalTwin Land #CESM2 model we find the modern human-impacted Hg flux to be 2-3 fold higher than the pre-industrial river Hg flux of 390 Mg/y
@cnrs.fr
Human perturbations to mercury in global rivers
The modeled preindustrial baseline of ~390 Mg/year indicates ~600 Mg/year increases in present-day due to human perturbations.
www.science.org
June 12, 2025 at 1:22 PM
Dong Peng & Yanxu Zhang lead our new global river #mercury study out in www.science.org/doi/10.1126/...
Using the #DigitalTwin Land #CESM2 model we find the modern human-impacted Hg flux to be 2-3 fold higher than the pre-industrial river Hg flux of 390 Mg/y
@cnrs.fr
Using the #DigitalTwin Land #CESM2 model we find the modern human-impacted Hg flux to be 2-3 fold higher than the pre-industrial river Hg flux of 390 Mg/y
@cnrs.fr
Reposted by Jeroen E. Sonke PhD
Even the most ambitious policies won’t stop #PlasticPollution rising before 2060.
A recent study shows legacy plastic waste is still fragmenting & leaking into the environment, and calls for urgent cleanup of existing mismanaged plastic to protect ecosystems & human health. @jeroensonke.bsky.social
A recent study shows legacy plastic waste is still fragmenting & leaking into the environment, and calls for urgent cleanup of existing mismanaged plastic to protect ecosystems & human health. @jeroensonke.bsky.social
Microplastics in the environment could multiply by 2060
The total amount of microplastics in the environment could multiply by 2060. This scenario even applies in the event of an active fight against global mismanagement in waste management, French…
buff.ly
April 30, 2025 at 1:13 PM
Even the most ambitious policies won’t stop #PlasticPollution rising before 2060.
A recent study shows legacy plastic waste is still fragmenting & leaking into the environment, and calls for urgent cleanup of existing mismanaged plastic to protect ecosystems & human health. @jeroensonke.bsky.social
A recent study shows legacy plastic waste is still fragmenting & leaking into the environment, and calls for urgent cleanup of existing mismanaged plastic to protect ecosystems & human health. @jeroensonke.bsky.social
Reposted by Jeroen E. Sonke PhD
🌍🧪 Plastics will linger past 2060 – even with bold policy action
A new study finds that even under the most ambitious global plans, microplastics will keep rising due to legacy waste.
🔗 doi.org/10.1126/scia...
#Plastics 🧪 #SciComm
A new study finds that even under the most ambitious global plans, microplastics will keep rising due to legacy waste.
🔗 doi.org/10.1126/scia...
#Plastics 🧪 #SciComm
Global environmental plastic dispersal under OECD policy scenarios toward 2060
Global plastic pollution budget finds most historical plastic waste on land, indicating need for remediation policy instruments.
doi.org
April 20, 2025 at 4:23 PM
🌍🧪 Plastics will linger past 2060 – even with bold policy action
A new study finds that even under the most ambitious global plans, microplastics will keep rising due to legacy waste.
🔗 doi.org/10.1126/scia...
#Plastics 🧪 #SciComm
A new study finds that even under the most ambitious global plans, microplastics will keep rising due to legacy waste.
🔗 doi.org/10.1126/scia...
#Plastics 🧪 #SciComm
Our new study looking at @oecd-env.bsky.social plastic policy scenarios and global environmental #plastic dispersal is out:
www.science.org/doi/10.1126/...
New global budget; much plastic in marine sediments; most plastic on land; land cleanup needed to achieve lower exposure by 2060
@cnrs.fr
www.science.org/doi/10.1126/...
New global budget; much plastic in marine sediments; most plastic on land; land cleanup needed to achieve lower exposure by 2060
@cnrs.fr
Global environmental plastic dispersal under OECD policy scenarios toward 2060
Global plastic pollution budget finds most historical plastic waste on land, indicating need for remediation policy instruments.
www.science.org
April 16, 2025 at 7:40 PM
Our new study looking at @oecd-env.bsky.social plastic policy scenarios and global environmental #plastic dispersal is out:
www.science.org/doi/10.1126/...
New global budget; much plastic in marine sediments; most plastic on land; land cleanup needed to achieve lower exposure by 2060
@cnrs.fr
www.science.org/doi/10.1126/...
New global budget; much plastic in marine sediments; most plastic on land; land cleanup needed to achieve lower exposure by 2060
@cnrs.fr
@cnrs.bsky.social accueille Le Monde de Jamy en s'interrogent sur les plastiques dans notre vie, et dans le ciel de l'Observatoire du Pic du Midi ce soir sur France-5 à 21h05 et en ligne: france.tv/france-5/le-...
Savoir plus sur les micropalstiques dans l'air du Pic: www.nature.com/articles/s41...
Savoir plus sur les micropalstiques dans l'air du Pic: www.nature.com/articles/s41...
January 13, 2025 at 3:14 PM
@cnrs.bsky.social accueille Le Monde de Jamy en s'interrogent sur les plastiques dans notre vie, et dans le ciel de l'Observatoire du Pic du Midi ce soir sur France-5 à 21h05 et en ligne: france.tv/france-5/le-...
Savoir plus sur les micropalstiques dans l'air du Pic: www.nature.com/articles/s41...
Savoir plus sur les micropalstiques dans l'air du Pic: www.nature.com/articles/s41...
Pollutant #Hg emissions are thought to disperse and oxidize in the global troposphere. Our new study led by A.Saiz-Lopez @csic.es suggests equally important Hg oxidation and dispersion via the lower stratosphere, increasing under RCP8.5 in CESM-WACCM
science.org/doi/10.1126/...
@cnrs.bsky.social
science.org/doi/10.1126/...
@cnrs.bsky.social
Role of the stratosphere in the global mercury cycle
The stratosphere facilitates the processing and global dispersion of mercury from polluted source regions to remote environments.
science.org
January 13, 2025 at 1:57 PM
Pollutant #Hg emissions are thought to disperse and oxidize in the global troposphere. Our new study led by A.Saiz-Lopez @csic.es suggests equally important Hg oxidation and dispersion via the lower stratosphere, increasing under RCP8.5 in CESM-WACCM
science.org/doi/10.1126/...
@cnrs.bsky.social
science.org/doi/10.1126/...
@cnrs.bsky.social
Reposted by Jeroen E. Sonke PhD
Parfois, discuter avec un con, c’est comme essayer de jouer aux échecs avec un pigeon. Tu as beau être très fort aux échecs, il arrive, renverse les pièces, chie sur l’échiquier et s’en va avec l’air supérieur comme s’il avait gagné.
#LoideBrandolini
bonpote.com/loi-de-brand...
#LoideBrandolini
bonpote.com/loi-de-brand...
Loi de Brandolini : doit-on répondre aux cons ?
Loi de Brandolini. J'ai enfin pu mettre un nom sur ce qui me fait très certainement le plus défaut : savoir si je dois répondre à un con.
bonpote.com
November 29, 2024 at 11:30 AM
Parfois, discuter avec un con, c’est comme essayer de jouer aux échecs avec un pigeon. Tu as beau être très fort aux échecs, il arrive, renverse les pièces, chie sur l’échiquier et s’en va avec l’air supérieur comme s’il avait gagné.
#LoideBrandolini
bonpote.com/loi-de-brand...
#LoideBrandolini
bonpote.com/loi-de-brand...