VOCs type

Old rubbish

(buried 4 years)

Fresh rubbish

(buried 2 years)

Difference between two treatment

Old rubbish/Fresh rubbish

alcohols

292

20.0

14.6

aldehydes

200.1

39.0

5.1

ketones

189.7

34.0

5.6

esters

312.4

18.7

16.7

aromatic hydrocarbons

250.8

53.5

4.7

alkanes

357.5

42.6

8.4

alkenes

38.8

7.03

5.5

total

1641.0

214.9

7.6