Skip to Main Content
Table 1

Quality of stored and treated rainwater samples

VariablesVietnam standardWHOStored rainwaterTreated rainwater
pH 6.5–8.5 – 6.3–8.1 6.3–7.4 
Turbidity (NTU) – 0.05–1.63 0.05–1.3 
Nitrite (mg/L) 0–2.31 0–0.35 
Nitrate (mg/L) 50 50 0–8.6 0–2.0 
As (mg/L) 0.01 0.01 <0.005 0–0.005 
Iron (mg/L) 0.3 – 0.02–0.084 <0.05 
Lead (mg/L) 0.01 0.01 <0.001 0–0.001 
Zinc (mg/L) – 0–1.5 <0.05 
Nickel (mg/L) 0.02 0.07 <0.001 0–0.001 
Total coliform (MPN/100 mL) 0–78,000 
E. coli (MPN/100 mL) 0–3,200 
VariablesVietnam standardWHOStored rainwaterTreated rainwater
pH 6.5–8.5 – 6.3–8.1 6.3–7.4 
Turbidity (NTU) – 0.05–1.63 0.05–1.3 
Nitrite (mg/L) 0–2.31 0–0.35 
Nitrate (mg/L) 50 50 0–8.6 0–2.0 
As (mg/L) 0.01 0.01 <0.005 0–0.005 
Iron (mg/L) 0.3 – 0.02–0.084 <0.05 
Lead (mg/L) 0.01 0.01 <0.001 0–0.001 
Zinc (mg/L) – 0–1.5 <0.05 
Nickel (mg/L) 0.02 0.07 <0.001 0–0.001 
Total coliform (MPN/100 mL) 0–78,000 
E. coli (MPN/100 mL) 0–3,200 
Close Modal

or Create an Account

Close Modal
Close Modal