An indicator that describes the amount of nitrogen in water in the form of nitrite (NO₂⁻). Expressed in mg/L
Shows an intermediate form of nitrogen compounds formed during nitrification or denitrification processes
Nitrites are unstable compounds, so their presence in water indicates microbiological or chemical processes and possible pollution
A high concentration of nitrite nitrogen poses a health risk (especially to infants – risk of methemoglobinemia) and to ecosystems, as it disrupts the oxygen balance
In occupational health and safety assessments (drinking water quality)
In water control of industrial facilities (wastewater analysis, technological processes)
In environmental studies (assessment of the condition of water bodies, nitrogen cycle monitoring)
