High-resolution maps of ammonia concentration and nitrogen deposition for Baden-Württemberg
Maps of wet and dry deposition of reactive nitrogen (Nr) compounds are generated on a hectare raster for Baden-Württemberg (BW), Germany. An integrative modelling approach is applied, combining interpolation methods for wet deposition, emission maps and statistical...
An open-path QCL-based sensor for fast-response and high-sensitivity measurements of atmospheric ammonia
The paper presents a high-precision, fast-response, and low-power open-path quantum cascade laser (QCL) based sensor for measuring atmospheric ammonia (NH3). The sensor has a detection limit (1σ) of 0.53 ppbv at a 10 Hz sampling rate, with power consumption as low as...
High-resolution ammonia emission Inventory in Belarus Malchykhina Hanna, Salivonchyk Svetlana and Kakareka Sergey
The development of high-resolution ammonia emission inventory is an important step towards emission reduction. Such assessment can help policymakers to gain better understanding of the spatial variability of emissions and to implement mitigation measures in high...
Numerical analysis of agricultural emissions impacts on PM2.5 in China using a high-resolution ammonia emission inventory
China is one of the largest agriculture country in the world. The NH3 emission from agricultural activities are significantly affects the regional air quality and horizontal visibility in China. To reliably estimate the agriculture NH3 influence, a high-resolution...
Validation of nitrogen dry deposition modelling above forest using high-frequency flux measurements
Atmospheric deposition of reactive N compounds influences the productivity of natural ecosystems and its carbon dioxide exchange. As increasing N deposition may become harmful for a variety of ecosystems, it is necessary to thoroughly estimate the nitrogen exchange...
Atmospheric nitrogen deposition budget in the wet savanna of LAMTO in Côte d’Ivoire
In the framework of the International Network to study Deposition and Atmospheric chemistry in Africa (INDAAF), a nitrogen (N) atmospheric deposition budget including wet and dry processes was calculated in Lamto, a wet savana ecosystem in Côte d’Ivoire. For the first...
Assessment of Nitrogen and Carbon compounds emission as aftermath of wildfires in Dniester Delta (Ukraine) in 2010-2019
Reed-beds and aquatic plants are among main nitrogen (N) and carbon (C) depots in the Dniester Delta capable to accumulate up to 10-15% of N from annual riverine discharge. However this N and C removal pathway is often neglected. We showed that on average 10%...
Precipitation chemical composition and atmospheric nitrogen deposition in the lake Victoria catchment (East Africa)
In the framework of the CASAQUE and INMS projects, measurements of the precipitation chemical composition were initiated in 2017 over a two-year period in Mbita (Kenya). This work emphasized that the nitrogenous contribution is predominant and represent about...
Historical N load from land to East-China sea and riverine N2O emission in East-Asia
In this study, we evaluated historical N load to sea through the rivers in East Asia using process model VISIT combined with a newly developed VISIT Off-line River Nitrogen scheme (VISIToRN). This model can evaluate the in-stream denitrification rate (i.e., benthic...
Evaluation of changes in landscape loading of total nitrogen to U.S. waters using monitoring results
Spatially-representative monitoring and nitrogen input inventory allow for the assessment of large-scale management effects on stream total nitrogen (TN) concentrations in the conterminous US. We examined temporal and spatial variations in TN concentrations of streams...