Recent data show that water ice may exist in the bottoms of craters at Mercury's poles. The first-ever photos of water ice near Mercury's north pole have come down to Earth, and they have quite a story to tell. Elemental mercury is typically released from industrial processes, agricultural processes, household, commercial and medical products containing mercury, sewage discharge and sediment.

Mercury also combines with carbon to make organic mercury compounds. We have written many stories about Mercury here on Universe Today. Water as from such a source in terrestrials comes from hydrogen and oxygen trapped in the mantle material, which are later released by volcanism and …

The water on the planet Mercury exists as ice, at the bottom of craters near the poles. This orthographic projection view provides a look at Mercury's north polar region.
So there is water on Mercury, just not very much. Although Mercury is the closest planet to the Sun, and can be extremely hot over most of its surface, ice may exist at the bottoms of some polar craters because the crater floors are permanently shadowed by the crater rims. The major source of mercury is from natural degassing of the earth's crust in the range of 25,000-150,000 tons of mercury per year (Hg/yr). Mercury is a naturally occurring metal that combines with other elements to form inorganic mercury compounds. Mercury in Water and Drinking Water. Ways to Eliminate Mercury in Water. Elemental mercury vapor may cause nervous system damage when exposed at high concentrations. Is there any water on Mercury? Yes, water (ice) has been found on Mercury. The technology exists to do a much better job at controlling mercury pollution and it does not have to be emitted into our air and streams. To read more on NASA's findings, check out the related link below. Just a couple of these technologies include the following: Scrubber technology can be used to get 90 percent of the mercury out of emissions.

Here’s an article about a the discovery that Mercury’s core is liquid.