Table 3.

The final concentrations and percentages of removed nitrate for both types of activated carbon and the different initial concentrations of nitrate assayed. The values between parentheses correspond to the red curves in Figure 4.

Cinitial (M)	Carbon 1		Carbon 2
	Cfinal (M)	Removed Nitrate (%)	Cfinal (M)	Removed Nitrate (%)
1 × 10−5	1.6 × 10−6	84	3.3 × 10−6	67
2 × 10−5	2.2 × 10−6 (2.7 × 10−6)	89 (87)	3.8 × 10−6 (3.6 × 10−6)	81 (82)
4 × 10−5	7.3 × 10−6	82	1.1 × 10−5	74