A program to teach data literacy to Maine and New Hampshire students by analyzing data on arsenic in well water collected from their homes has found that 25 percent of samples exceed the New Hampshire maximum safety level of 5 parts per billion (ppb) and 15 percent exceed the U.S. Environmental Protection Agency (EPA) maximum safety level of 10 ppb.
Click here for original story, Program reveals high arsenic in well water
Source: Phys.org