1. US EPA – Initial List of Hazardous Air Pollutants with Modifications, https://www.epa.gov/haps/initial-list-hazardous-air-pollutants-modifications
2. n-Hexane – Substance Information – ECHA, https://echa.europa.eu/substance-information
3. Toluene – Substance Information – ECHA, https://echa.europa.eu/substance-information/-/substanceinfo/100.003.297
4. n-Hexane – Substance evaluation – CoRAP – ECHA, https://echa.europa.eu/information-on-chemicals/evaluation/community-rolling-action-plan/corap-table/-/dislist/details/0b0236e1807e4bd4
5. Searching for green solvents