On X-MOL, find the complete list of journals under the 'Environmental Science' category. Identify all unique journal titles and their corresponding Impact Factors. List these unique journals and their Impact Factors, sorted in descending order by Impact Factor.
Navigate to 'x-mol.com'. Click on the '期刊' (Journal) link to go to the journal list page. Locate and click the '全部期刊列表>>' (All Journal List>>) link. On the 'All Journals' page, locate and click the '环境' (Environmental Science) filter. Identify all unique journal titles and their Impact Factors displayed on the page. List the identified unique journals and their Impact Factors, sorted by Impact Factor in descending order.
Successfully navigate to the 'Journal List' page. Successfully navigate to the 'All Journals' list. Successfully filter journals by the '环境' (Environmental Science) category. Identify all unique journal titles and their Impact Factors displayed on the page. State the titles and Impact Factors of all unique journals found on the page. Ensure the listed journals are sorted in descending order of their Impact Factors. The list of journals should include, but not be limited to, 'J. Hazard. Mater.' (IF 12.2), 'Water Res.' (IF 11.2), 'Sci. Total Environ.' (IF 9.8), and 'Environ. Pollut.' (IF 8.9), 'Environ. Sci. Technol.' (IF 10.8).