There was once a study conducted on the effects of surface temperatures on the development of various types of bacteria. Researchers found that playing surface temperatures of one hundred and fifty degrees Fahrenheit for extended periods of time caused a significant increase in the number of bacteria which showed up in the test subjects’ colons. And, when those bacteria were found, they tended to proliferate rapidly – resulting in a rather unhealthy situation for the people who were regularly subjected to this high temperature. It’s clear from this study that excessive heating may be one of the causes of the increasing problem of harmful bacteria on Synthetic Turf. Another major concern that many people have related to the harmful effects of low levels of moisture on athletic fields. The football, artificial grass and soccer in particular, rely upon natural grass because of the moisture that naturally exists in it.