- Air Pollution (oakland)
- Environmental issues in Oakland (oakland)
- Lake Michigan (chicago)
- Lead contamination (oakland)
- Lead paint (ann-arbor)
- Lion Creek (oakland)
- Neptune Society (oakland)
- north side of the pier (ib)
- notes/health and pollution (seattle)
- Sewage (ib)
- Smog (oakland)
- the border (ib)
- Tijuana Estuary (ib)
- United Sludge-Free Alliance (lv)
- Wilson Creek (menomonie)