Research and Development Needs

Water Quality

Ambient Water Quality Criteria for Colour in British Columbia: Technical Appendix

10. Research and Development Needs

There are several measurement scales for true and apparent colour that provide much more information than measurements using the Hazen scale or transmission of white light (e.g., tristimulus system, Munsell system). There are, however, few or no monitoring or effects data available using these measurement scales, and thus it was not possible to derive aquatic life or wildlife criteria using the preferred measurement scales. Research on how changes in colour measured in chromaticity or Munsell units affect biota would be very useful for future criteria development.


	Water Quality Ambient Water Quality Criteria for Colour in British Columbia: Technical Appendix 10. Research and Development Needs There are several measurement scales for true and apparent colour that provide much more information than measurements using the Hazen scale or transmission of white light (e.g., tristimulus system, Munsell system). There are, however, few or no monitoring or effects data available using these measurement scales, and thus it was not possible to derive aquatic life or wildlife criteria using the preferred measurement scales. Research on how changes in colour measured in chromaticity or Munsell units affect biota would be very useful for future criteria development.