Historical clue formulations

• Pollutants banned in the ’70s, in brief — 2024-04-30
• E.P.A. targets since the '70s — 2021-05-19
• Banned pollutants — 2019-03-28
• Subj. of the Toxic Substances Control Act of 1976 — 2016-11-19
• Banned pollutants — 2016-10-30
• They've been banned in the U.S. since '79 — 2014-10-05
• Environmental pollutants, for short — 2014-08-15
• Noxious compounds, briefly — 2012-11-30
• E.P.A. targets — 2012-07-21
• Potential landfill pollutants, for short — 2012-06-24
• Some coolant fluids, for short — 2012-05-03
• Banned pollutants, briefly — 2010-05-03
• Chemicals banned by Congress in '76 — 2010-02-14
• Dumpsite pollutants, for short — 2008-03-27
• Banned chemicals — 2007-03-18
• Banned pollutants, briefly — 2004-04-29
• Environmental toxins, for short — 2002-10-15
• Highly toxic pollutants — 2001-06-02
• Some pollutants — 1996-07-06
• Cancer-causing compounds — 1994-12-13