Pros & Cons
3 Pros:
• These fundamental quality classes are helpful for international comparisons
• Categorisation is very easy to understand
• Colour scheme is intuitively understandable
3 Cons:
• Gross categorisation of information
• No inclusion of chemical reason for low quality in a specific case
• Red category need not be automatically of unhealthy quality, if river quality is good
![data](/sites/default/files/styles/large/public/2022-01/image153.png?itok=F8WS41GB)