The soil around and under artificial grass fields in the Netherlands is seriously polluted with zinc, cobalt, mineral oils and other hazardous waste. The pollution is the result of the use of rubber as scatter material under the grass layer.
The rubber granulate is a recycling project from used rubber tyres. The underground of the football fields is composed of these granulates, but also of crushed igneous rock and sand. The pollutants in the used tyres have been leaking in the bottom and the underground water. According to some studies the background values for the pollutants are exceeded. As a result, some football fields need to be sanitated, which mean an extra cost of about EUR 100,000 per field.
Source: Belang van Limburg, 12 October 2017