| web | https://www.inquirer.com/science/climate/noaa-pollution-ozone-sunscreen-20210803.html |
| author | Frank Kummer |
| publication | Philadelphia Inquirer |
| date | 2021-08-03 |
| web | Matthew M. Coggon, Georgios I.... | PNAS | 2021-08-10 | |
| web | Georgios I. Gkatzelis, Matthew... | Environ Sci Technol | 2021-03-15 |
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