Hydrogen Air Pollution Benefits​
US EPA has designated several geographic areas within Texas as having air pollution that is sufficiently concerning that it must be measured and tracked (see map). The types and levels of air pollution vary in severity; however, the metropolitan areas of Dallas-Fort Worth and Houston-Galveston are particularly of concern. The pollutants associated with diesel trucks are particulate matter (PM) and nitrogen oxides (NOx, which contributes to ozone). Counties affected by air pollution are eligible for TCEQ grants to clean up truck fleets. ​
The exhaust from hydrogen fueled trucks is primarily water vapor. In fact, hydrogen powered fuel-cell electric trucks emit only water vapor from the tailpipe, and hydrogen powered combustion engines primarily emit water vapor and some NOx. ​
​Hydrogen powered trucks are being designed to replace diesel trucks on a 1:1 basis. ​