The United States Environmental Protection Agency (EPA) does an excellent job of assembling and posting relatively short, highly informative, readable, technical documents they refer to as Technology Fact Sheets.
As I come across these documents I'll post them here. They are PDF files that quickly get to the point for a specific topic, providing you with practical reference material. Clicking on any of the graphics below the EPA logo will open up that document for viewing/printing. There is some really good information here!