[Concentration, Flux, and Emission Factor of NO in Rivers with Different Nitrogen Pollution Features].

In this study, 22 rivers in Tieling City were selected to study the concentration, flux, and emission factor (EF) of NO. Based on the concentrations and components of nitrogen (N), the 22 rivers can be divided into ammonia nitrogen (NH)-polluted rivers (mean NH=5.86 mg·L), nitrate nitrogen (NO)-polluted rivers (mean NO=3.

[Spatio-temporal Distribution and Source Apportionment of Nitrogen in Rivers of Tieling].

This study analyzed the spatio-temporal distribution and sources of nitrogen (N) in 22 rivers in Tieling City during 2013-07-2014-07. The results showed that the concentrations of TN, NO-N, and NH-N were 1.26-18.

[Denitrification in water of Daliao River estuary in summer and the effect of environmental factors].

Ratios of nitrogen loss and N2O production by denitrification were observed in Daliao River and the estuary in summer 2013. The results showed that the concentrations of N and P in the main stream of Daliao River were significant higher than those in the estuary (P < 0.05).