Table 1 Sampling locations and number of samples (CS; short-term green wastes storage centres, CL; long-term green wastes storage centres, CF; composting facilities)

CF1

S

Ticino

15-20

Open lowland area

4

2

CF2

S

Ticino

4-5

Closed area in a wood on a hilly terrain

3

1

CF3

S

Ticino

4-5

Open lowland area

4

2

CF4

S

Ticino

15-20

Closed area in a wood on a hilly terrain

4

2

CF5

N

Zurich

> 30

Open lowland area

4

4

CF6

N

Zurich

4-5

Open lowland area

4

4

CF7

N

Aargau

15-20

Closed area in a wood on a hilly terrain

4

4

CF8^c

N

Lucerne

>30

Closed area in a wood on a hilly terrain

4

5

CL1

S

Ticino

2-3

Open lowland area

2

2

CL2

S

Ticino

2-3

Open lowland area

2

2

CS1

S

Ticino

1-2

Open lowland area

1

1

CS2

S

Ticino

2-3

Open lowland area

2

0

CS3

S

Ticino

1-2

Open lowland area

1

1