Asteroids that orbit close to the Earth inevitably cause us some anxiety due to the even remote possibility of a collision.

You're not alone if you have questions about fluoride in your water supply. We reached out to experts to get answers.

In this installment, I primarily discuss considerations to keep in mind when choosing buffering additives that will be used ...

CNET’s expert staff reviews and rates dozens of new products and services each month, building on more than a quarter century of expertise.

The sum of all particulate material dissolved in water. Usually expressed in terms of milligrams per litre (mg/L). It can be measured by evaporating the solvent and measuring the mass of residues left ...

Environmental Engineering Program, University of Colorado Boulder, Boulder, Colorado 80309, United States ...