Setting Sail to Find Microplastics in San Francisco Bay

Monitoring San Francisco Bay for microplastics - photo by Plus M Productions
5 Gyres and SFEI have begun field work for the SF Bay Microplastics Project, a two year investigation on microplastics in San Francisco Bay and the adjacent marine sanctuaries, in August and September.
This project includes multiple scientific components to develop improved knowledge of microplastic pollution in the Bay Area:
- Baseline microplastic monitoring in San Francisco Bay surface water, sediment, and fish
- Monitoring in National Marine Sanctuary surface waters outside of the Golden Gate
- Characterization of microplastics in treated wastewater and stormwater flowing into the Bay
- Rigorous method development and standardization
- Development of modeling tools to link Bay contamination to adjacent Sanctuaries
- Data-driven policy options for the Bay Area developed with leading national and regional experts
- Share findings with regional stakeholders and the public
To celebrate the commencement of the project, we have invited key members of the science, policy, industry, and media communities in the Bay Area to join us in one of our sample collection efforts. Together we can examine the issue of microplastic pollution and potential innovative solutions for the Bay.
For more information, please contact:
Carolynn Box – 5 Gyres
Meg Sedlak – SFEI
Further resources:
Frequently Asked Questions about plastic pollution (5 Gyres)
5 Gyres' #FoamFree Campaign
Related Projects, News, and Events:

Microplastic Pollution in San Francisco Bay and Adjacent Marine Sanctuaries (Project)Monitoring San Francisco Bay for microplastics - photo by Plus M Productions
Plastic pollution is gaining global recognition as a threat to the resilience and productivity of ocean ecosystems. However, we are only just beginning to understand the scope and impacts of microplastic particles (less than 5 mm) on coastal and ocean resources, and the San Francisco Bay Area is no exception. A preliminary study of nine water sites in San Francisco Bay, published in 2016, showed greater levels of microplastics than the Great Lakes or Chesapeake Bay.

A two-year investigation on microplastic and nanoplastic pollution in San Francisco Bay and the surrounding ocean will launch this month, led by two research centers, the San Francisco Estuary Institute and the 5 Gyres Institute.