“…Due to their components, especially styrene butadiene rubber (SBR) from recycled scrap tires and plastics like thermoplastic elastomers (TPE) and ethylene propylene diene monomer rubber (EPDM), there is an increasing concern about potential environmental and health hazards (Li et al, 2010;Menichini et al, 2011). Among the most important contaminants that may be released from synthetic surfaces and sporting grounds are zinc from zinc oxide used as vulcanization catalyst (Bocca et al, 2009;Hofstra, 2009), polycyclic aromatic hydrocarbons (PAH) used as softening agents (Wengert, 2007), volatile compounds and additives like benzothiazole (Li et al, 2010), as well as aniline and phenol (Lim and Walker, 2009). Menichini et al conducted an initial risk assessment of PAH in ambient air above artificial turfs filled with recycled rubber and calculated an excess lifetime cancer risk of 1*10 À6 (Menichini et al, 2011).…”