I came across an easy to use, easy to learn from, & very interactive site put together by the US National Library of Medicine. The name of the site is Tox Town, and here you can pick which neighborhood you would like to learn more about (city, farm, port, town, border region, or southwest) and learn locations in those neighborhoods where potential hazardous chemicals could be. When I visited the site I choose the town as my neighborhood, and as you can see in the picture there are various locations given and are shown where they are on the map by just scrolling over the name. If you click on a particular location for example the school, additional information is given on what toxic substances could be present. Looking at the picture, you can also see names of chemicals that could be potentially found in the town, and again scrolling over the name will show you where the chemicals are found on the map. This site is great for learning and helpful for all ages. Props to the NLM! Check … [Read more...] about Tox Town- NLM.gov