Table 1.

Descriptive metadata was collected for each sample, including date, location and climate in the time of sampling.

ID sample	Sport Facilities	Sampling Time	Material	Sampling point
C1	I	nov-16	Synthetic turf	Center Mark
C2	I	nov-16	Synthetic turf	Corner Arc
C13	I	nov-16	Synthetic turf	Grass/sand play area
C3	II	nov-16	Synthetic turf	Center Mark
C4	II	nov-16	Synthetic turf	Corner Arc
C5	II	nov-16	Synthetic turf	Penalty Area
C14	II	nov-16	Synthetic turf	Grass/sand play area
C12	II	nov-16	Natural grass	Center Mark
C37	II	Jan-18	Natural grass	Center Mark
C38	II	Jan-18	Natural grass	Penalty Area
C39	II	Jan-18	Natural grass	Corner Arc
C49	II	Jan-18	Natural grass	Grass/sand play area
C6	III	nov-16	Synthetic turf	Center Mark
C7	III	nov-16	Synthetic turf	Corner Arc
C8	III	nov-16	Synthetic turf	Penalty Area
C15	III	nov-16	Synthetic turf	Grass/sand play area
C9	IV	nov-16	Synthetic turf	Center Mark
C10	IV	nov-16	Synthetic turf	Corner Arc
C11	IV	nov-16	Synthetic turf	Penalty Area
C16	IV	nov-16	Synthetic turf	Grass/sand play area
C28	V	Jan-18	Synthetic turf	Center Mark
C29	V	Jan-18	Synthetic turf	Penalty Area
C30	V	Jan-18	Synthetic turf	Corner Arc
C46	V	Jan-18	Synthetic turf	Grass/sand play area
C31	VI	Jan-18	Synthetic turf	Center Mark
C32	VI	Jan-18	Synthetic turf	Penalty Area
C33	VI	Jan-18	Synthetic turf	Corner Arc
C47	VI	Jan-18	Synthetic turf	Grass/sand play area
C34	VII	Jan-18	Synthetic turf	Center Mark
C35	VII	Jan-18	Synthetic turf	Penalty Area
C36	VII	Jan-18	Synthetic turf	Corner Arc
C48	VII	Jan-18	Synthetic turf	Grass/sand play area
C40	VIII	Jan-18	Natural grass	Center Mark
C41	VIII	Jan-18	Natural grass	Penalty Area
C42	VIII	Jan-18	Natural grass	Corner Arc
C50	VIII	Jan-18	Natural grass	Grass/sand play area
C43	IX	Jan-18	Natural grass	Center Mark
C44	IX	Jan-18	Natural grass	Penalty Area
C45	IX	Jan-18	Natural grass	Corner Arc
C51	IX	Jan-18	Natural grass	Grass/sand play area