1. a Department of Civil and Environmental Engineering , University of Massachusetts Lowell , One University Ave., Lowell, MA, 01854
2. b Department of Chemistry , University of Massachusetts Lowell , One University Ave., Lowell, MA, 01854
3. c Department of Civil and Environmental Engineering , University of Massachusetts Lowell , One University Ave., Lowell, MA, 01854
4. d Hampshire Chemical Corporation , 2 East Spit Brook Road, Nashua, NH, 03060–5737