Sites (years in work)
|
High Populated
|
Low Populated
|
Control
|
7.0
|
6.9
|
1 year
|
6.3
|
6.3
|
2 years
|
6.8
|
6.1
|
5 years
|
7.0
|
6.1
|
In our result, we can clearly see the high populated areas have a higher pH levels than the low populated areas.