On July 26, 2021, during the 1.5-kilometer swimming event of the triathlon at the Tokyo Olympics, an athlete vomited, which drew widespread attention from netizens. During the competition, some people gave up the race, saying that the water smelled too strong. However, so far, the Olympic Committee has not responded to the reason. When many netizens “speculated” that it was due to the severe infection of E. coli in the water, which caused the athletes not to jump up excitedly after the competition but to keep vomiting, it was so “terrifying”!
In fact, as early as the beginning of July, the JD Olympic Organizing Committee had already monitored the water quality for 26 days. Among them, only 6 days saw the water quality meet the standards, stating that the E. coli index in this water area had exceeded the stipulated value for triathlon by 21 times. It is easy to imagine that athletes may experience vomiting.
So what is Escherichia coli?
The Escherichia coli we need to understand can also be called Escherichia coli. When it is not pathogenic, it coexists with humans or animals. However, if it is pathogenic, it is different. It can be regarded as a parasite by humans and is harmful to the human body. Its origin is very broad, including the presence of Escherichia coli in places such as sewer leaks and septic tanks.
We should know that in natural water bodies, pathogenic microorganisms come from domestic sewage. These microorganisms not only damage the quality of water, but in severe cases, they can also cause diseases such as typhoid fever. Therefore, it is very important to detect and control the discharge of pathogenic microorganisms into natural water bodies! The indicators for monitoring pathogenic microorganisms in water bodies include coliform bacteria, Escherichia coli, etc., to determine the content of pathogenic microorganisms in water bodies.
As for what instruments are used to monitor the content of coliform bacteria and Escherichia coli in water? Two types can be used respectively: the Online Coliform Analyzer and the Online Escherichia coli Analyzer for water quality. Coliform bacteria are not named after a bacteriological category. In fact, it is a term used in the field of hygiene bacteria. It does not represent a specific genus or a particular type of bacteria, but mainly refers to a group of bacteria related to fecal contamination that possess certain characteristics. Simply put, the range of coliform bacteria includes Escherichia coli.
