Items where Author is "Howden, N. J. K."

Burt, T. P. and Howden, N. J. K. and Worrall, F. and Whelan, M. J. and Bieroza, M. (2011) Nitrate in United Kingdom rivers : policy and its outcomes since 1970. Environmental Science and Technology, 45 (1). pp. 175-181. ISSN 0013-936X

Howden, N. J. K. and Burt, T. P. and Worrall, F. and Whelan, M. J. and Bieroza, M. (2010) Nitrate concentrations and fluxes in the River Thames over 140 years (1868-2008) : are increases irreversible? Hydrological Processes, 24 (18). pp. 2657-2662. ISSN 0885-6087