Dear Nicole, a number of ...

Dear Nicole,

a number of the parameters suggested by Zaid would be useful to measure, but you have first to identify the type of pressures in the catchment, particularly the industrial ones (for agricultural pressures Zaid provided sufficient parameters) in order to define any additional organic and inorganic micropollutants to be measured. You will certainly need to investigate both surface and ground waters in terms of their seasonal hydrological interactions and proceed then to chemical analyses. An alternative in carrying out many expensive measurements would be to apply toxicological tests and/or investigate the response of biota in your catchment (e.g. benthic macroinvertebrates, diatoms, fish) which mirrors long-term impacts.