Last year the ACS work visit grant was awarded for the first time. The first awardee
was Jonathan Overeem, who went to the university of São Paulo in Brazil to research the effects of air pollution on kidney health. Here he used the unique facilities to investigate how exposure to particulate matter (PM2.5) accelerates renal aging and increases cardiovascular risk.

Air Pollution and Kidney Disease

Several studies have linked PM2.5 to a higher risk of chronic kidney disease (CKD). São Paulo, known for its elevated pollution levels, provides an ideal setting to study these effects. The project will expose mice to local air pollution using a novel exposome chamber, allowing the analysis of the direct impact on kidney function and structure. Overeem explains, “By using the air of São Paulo, we can study the real-world impact of pollution on kidney health that is not possible in the Netherlands.”

By using the air of São Paulo, we can study the real-world impact of pollution on kidney health that is not possible in the Netherlands.
Jonathan Overeem
PhD Candidate
Impact on Public Health

CKD affects 9% of Dutch adults and is a major risk factor for cardiovascular disease. By understanding how air pollution accelerates kidney aging, the project aims to identify at-risk populations and develop new preventive strategies. Sample collected in Brazil will be analyzed at Amsterdam UMC using state-of-the-art imaging and measurement techniques. The results will be compared with ongoing human studies, bridging the gap between laboratory research and clinical practice.

Personal experience

Overeem’s work visit is not only scientifically enriching, but also personally challenging. He shared an anecdote of is time in São Paulo: “Recently, a tropical storm swept through the city, causing power outages and leaks in the hospital. Our team had to work together to manage the leaks and keep our research on track.” His time in Brazil is coming to an end, making it the perfect moment for an inspiring conference to share project results and experiences between Brazil and the Netherlands.

Work Visit Grant
Also want to start a collaboration abroad? Or lean a new technique at an international institute? The ACS Work Visit Grant call is now open again for ACS PhD students and postdoctoral researchers. Submit your application before Monday April 20, 2026 11:00AM