I don't know why they couldn't include it in the article, but it appears to be https://pubs.acs.org/doi/10.1021/acs.est.3c03899 https://pubs.acs.org/doi/10.1021

I don't know why they couldn't include it in the article, but it appears to be https://pubs.acs.org/doi/10.1021/acs.est.3c03899 https://pubs.acs.org/doi/10.1021/acs.est.3c03899