The Annual Wastewater Treatment Accounting Reports Dataset contains data from annual wastewater management accounting reports of economic operators about pollutants discharged to the environment, wastewater quality, wastewater treatment plants, discharge points and receiving water bodies, are given. Economic operators submit their annual reports on wastewater treatment accounting to the Environmental Protection Agency through information system "Integrated Computer System for Environmental Information Management" (AIVIKS), in accordance with the requirements of the Description of Procedures for Water Use and Wastewater Management Accounting.

Each year, an updated list of economic operators that have carried out an inventory of ambient air pollution sources and their emissions is provided.

The compilation provides an assessment of the ecological and chemical status of water bodies in the river category, based on national environmental monitoring data or expert judgement. The ecological status is determined on the basis of indicators of physico-chemical, hydromorphological and biological quality elements, in accordance with the methodology for determining the status of surface water bodies. The chemical status was determined in accordance with the Waste Water Management Regulation.

The compilation provides an assessment of the ecological and chemical status of water bodies in the lake category, based on national environmental monitoring data or expert judgement. The ecological status is determined on the basis of indicators of physico-chemical, hydromorphological and biological quality elements, in accordance with the Methodology for Determining the State of Surface Water Bodies. The chemical status was determined in accordance with the Waste Water Management Regulation.

Data for rivers and canals: identification code, name, date of registration, date of the editing of the water body, water body category name code, the code of the river sub-basin or basin in which the water body is located, the unique identifier of the older river into which the rivers flow, X and Y coordinates of the centre of the mouth in the LKS 94 coordinate system, the bank of the inflow into the older river, sequence of inflow of the river, length in the territory of Lithuania, average multi-year water flow at the mouth of the river.

Data for lakes, ponds and artificial surface water bodies without tributaries or sources: name, registration date, editing date, center coordinate, water surface area in the territory of Lithuania, identification code, water body category name code, lake square number, lake number in the square, lake type, water body length, average width, length of the shoreline, code of the river sub-basin or basin in which the water object is located, unique identifier of the direct river, other data.

The system of automatic state ambient air monitoring stations in Lithuania consists of 14 urban air quality monitoring stations operating in Vilnius, Kaunas, Klaipėda, Šiauliai, Panevėžys, Jonava, Kėdainiai, Naujoji Akmenė and Mažeikiai and 3 integrated monitoring stations operating in Aukštaitija, Žemaitija and Dzūkija National Parks. Concentrations of the following pollutants are measured at automatic air quality monitoring stations: particulate matter PM10, fine particulate matter PM2.5, nitrogen oxides (NO2, NOx, NO), sulfur dioxide (SO2), carbon monoxide (CO), ozone (O3), benzene, mercury. The tests and measurements shall be carried out in accordance with the requirements of Directives 2004/107/EC of the European Parliament and of the Council relating to arsenic, cadmium, mercury, nickel and polycyclic aromatic hydrocarbons in ambient air and 2008/50/EC on ambient air quality and cleaner air for Europe.

Lithuanian state air monitoring measurement data (semi-automatic sampling) Measurements was carried out at 5 state-monitored air quality research stations: Vilnius, Žirmūnai (0003), Kaunas Petrašiūnai (0041), Klaipėda Centras (0031), Šiauliai (0022), Aukštaitija (0051). From the PM10 filters exposed for 1 week (air volume pumping 2.3 m3/h), in the laboratory analyzed and reported monthly average and average annual concentrations in the ambient air of the following heavy metals: Pb, As, Ni, Cd (units of measurement for lead is µg/m3 and for As, Ni, Cd accordingly ng/m3) and the following polycyclic aromatic hydrocarbons (PAHs): benzo(a)pyrene, benzo(b)fluoranthene, benzo(k)fluoranthene, dibenzo(a,h)anthracene, indene(1,2,3-cd)pyrene (units ng/m3). The results of the measurements are presented in accordance with the following legislation: 2008 May 21 Directive 2008/50/EC of the European Parliament and of the Council on ambient air quality and cleaner air for Europe (lead in ambient air measurements); 2004 December 15 Directive 2004/107/EC of the European Parliament and of the Council relating to arsenic, cadmium, mercury, nickel, and polycyclic aromatic hydrocarbons in ambient air.

The dataset contains physico-chemical and hazardous substances data for national lake monitoring

The research is carried out at Aukštaitija and Žemaitija and Preila integrated air pollution research stations. To estimate the long-range transmission of air pollutants from other countries. Their impact on the overall pollution level of the Lithuanian air basin. Change in the main types of Lithuanian landscape. Transformation of pollutants and effects on the condition of relatively natural ecosystems. The research are carried out in implementation of Directives 2004/107/ EC of the European Parliament and of the Council relating to arsenic, cadmium, mercury, nickel and polycyclic aromatic hydrocarbons in ambient air. And 2008/50 / EC on ambient air quality and cleaner air for Europe. The obligations of Directive (EU) 2016/2284 of the European Parliament and of the Council to monitor the adverse effects of air pollution on ecosystems (requirements of Articles 9, 10 and Annex V), taking into account the country's obligations under the European Monitoring and Evaluation Program EMEP) and the requirements of the International Cooperative Program on Integrated Monitoring (ICP IM).

Data on emissions and transfers of pollutants by enterprises

The collection contains data on the quantities of waste generated and managed in the Republic of Lithuania. The Unified Product, Packaging and Waste Accounting Information System (www.gpais.eu) collects data aggregated over a calendar year, grouped by type of waste and waste management activity.

The Annual Water Use Accounting Reports Dataset contains data from annual water use accounting reports of economic operators about water, abstracted from surface water and groundwater bodies, received from other economic operators, used, transmitted, economized and lost during the supply. Economic operators submit their annual reports on water use accounting to the Environmental Protection Agency through information system "Integrated Computer System for Environmental Information Management" (AIVIKS), in accordance with the requirements of the Description of Procedures for Water Use and Wastewater Management Accounting.

The Annual Ambient Air Reporting Dataset for Stationary Sources contains data from the annual ambient air reports. The annual ambient air reports shall be submitted by economic operators to the Environmental Protection Agency through the information system "Integrated Computer System for Environmental Information Management" (AIVIKS), in accordance with the requirements of the Description of the Procedure for the Accounting and Reporting of Emissions of Pollutants into Ambient Air. These reports shall contain information on the quantities of pollutants emitted into ambient air, the types and quantities of fuels burned, and the emissions from the economic activity facilities operated under an integrated pollution prevention and control permit or an emissions permit.

List of legal entities and physical persons that manufacture, import, export, distribute and use chemicals and chemical mixtures in the course of their activities. The list includes legal entities that submit annual data sets to the Integrated Computer System for Environmental Information Management (IS AIVIKS) in accordance with Order D1-462 of the Minister of Environment “On Approval of the Description of the Procedure for Submission of Data and Information on Substances and Chemical Mixtures”. The list includes company names, JAR codes, addresses, and municipalities.

Data are provided on fluorinated greenhouse gases and ozone-depleting substances and mixtures imported from third countries, exported to third countries, imported from other EU countries and exported to other EU countries. Aggregate data are presented according to substance and mixture, country, nature of substance (recovered (RG) or not used (NE)) and action (imported from third countries (IM), exported to third countries (EC), imported from other EU countries (IS ) and exported to other EU countries (IS)).

List of chemical mixtures which, pursuant to Regulation (EC) No 1907/2006 of the European Parliament and of the Council 1272/2008 "On classification, labeling and packaging of substances and mixtures" are classified as hazardous to human health, the environment or with a physical hazard. The list provides information for 2020. on hazardous chemical mixtures manufactured, imported, exported, distributed and used by legal entities registered in Lithuania. The list includes hazardous chemical mixtures for which information has been submitted to the Integrated Computer System for Environmental Information Management (IS AIVIKS) in accordance with Order D1-462 of the Minister of Environment “On Approval of the Description of the Procedure for Submission of Data and Information on Substances and Chemical Mixtures”. The list shall identify the chemical mixtures manufactured, imported, exported, distributed and used (AIVIKS code, name), the action (manufactured, exported, imported, distributed and consumed), the quantity (tonnes) and the hazard statements. A list of hazard statements is also provided.

List of substances subject to Regulation (EC) No 1907/2006 of the European Parliament and of the Council 1272/2008 "On classification, labeling and packaging of substances and mixtures" are classified as hazardous to human health, the environment or with a physical hazard. The list provides information for 2020. on hazardous chemicals produced, imported, exported, distributed and used by legal entities registered in Lithuania. The list includes hazardous substances for which information has been submitted to the Integrated Computer System for Environmental Information Management (IS AIVIKS) in accordance with Order D1-462 of the Minister of Environment “On Approval of the Description of the Procedure for Submission of Data and Information on Substances and Chemical Mixtures”. The list shall include the identity (name, CAS No), action (manufactured, exported, imported, distributed and consumed), tonnage (tonnes) and hazard statements of the substances manufactured, imported, exported, distributed and used. A list of hazard statements is also provided.

Accounting data on the supply of products to the internal market

The dataset contains physico-chemical and hazardous substances data for national lake monitoring