TDW,

Most Americans will encounter arsenic, chromium, lead, selenium and so on as a result of coming in contact with toxic coal ash. A recently elected president has decreed that coal ash can be disposed of by simply dumping it into American streams and rivers, polluting drinking and recreational water in the first instance and, eventually, the oceans. Coal based power plants emit so much mercury vapor that many ocean fish are, as a direct result,  not safe for pregnant women to eat. While Obama was president the clean air plan led to greatly reduced mercury emissions. During a few short years mercury levels in Atlantic fish dropped 19% as a result. The orange haired wonder currently in the White House wants to dramatically ramp up coal use despite the fact that mercury is a neurotoxin, chromium is cacinogenic and so on. Food for thought.