Collecting stream-bottom macroinvertebrates is not dangerous; however, accidents can happen when groups of people are involved in any outdoor activity. The use of common sense is always the best safety precaution, and the following specific safety suggestions are recommended.
It is never wise to work alone around water. Always work in teams.
Children should always be accompanied by watchful adults.
Avoid sampling during storms or high water. In addition to the potential danger, it is unlikely that meaningful samples can be collected under such conditions.
Avoid sampling at sites with high or steep stream banks. Select sampling sites where no one is likely to slip and fall when trying to approach the stream.
During and after sample collection, keep hands away from eye and mouth areas. Always wash hands with soap and clean water after sampling. Never eat after sampling until hands have been washed.
If the stream is likely to be polluted, avoid contact with the water by wearing rubber gloves and boots.
If there is any concern that the stream may be severely polluted, it would be wise to consult with local health authorities or natural resources agencies for specific warnings or guidance.
Know the location of a nearby phone in case of emergency and always bring a first-aid kit containing antiseptic, bandages, etc.