Table 3
Ammonia concentrations in the cave environment (2002)
Distance into cave (m)
Conc. (ppm)
Conc. (μg/m
3
)
0
0.0
0
10
<0.25
177.5
50
<0.25
177.5
150
1.8
1278
200
2.1
1491
200
4.0
2840
(in freshly excavated pit)
8.0
5680