Welcome To Whitehall Township Whitehall Township is located in the center of the Lehigh Valley. The Township is one hour north of Philadelphia and an hour and half from New York City.
SALINITY OVERVIEW Salinity is the concentration of dissolved salts in water, usually expressed in parts per thousand (ppt). Objects float higher in salt water than fresh water because salt water is denser (heavier per unit of volume).
A. The composition of seawater can be divided into suspended (also called particulate) and dissolved materials. B. Salinity is the term used to describe the concentration of inorganic, dissolved salts in seawater. 1. Unit = ppt or o/oo (per mil) by weight.