On results of the project “NAMEA air emission accounts”

29.04.2011

In 2010 Central Statistical Bureau was working on European Union Gran project “NAMEA air emission accounts”. Mentioned project is the first project on this topic in Latvia, which was carried out basing on united methodology developed by the Statistical Office of the European Union (Eurostat). The aim of the project was to acquire data on emissions of various substances into the air in breakdown by economic activities, using the national emission inventories of the United Nations Organisation Convention on Climate Change and Convention on Long-range Transboundary Air Pollution. Greenhouse gases are natural and anthropogenic origin atmosphere components absorbing and re-emitting infrared radiation. Direct greenhouse gases are carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFC), perfluorocarbons (PFC) and sulphur hexafluoride (SF6), but carbon monoxide (CO), nitrogen oxides (NOx) and non-methane volatile organic compounds (NMVOC) are included in the group of indirect greenhouse gases.

Emissions of the polluting substances into the air cause various environmental problems, such as acidification (SO2, NOx, NH3), eutrophication (NOx, NH3) and formation of ground-level ozone (NMVOC, NOx).

The most part of the greenhouse gasses is formed by the CO2, it mainly arises in the burning of fossil fuel (oil products, coal, natural gas).

In 2005 the breakdown of carbon dioxide emission by economic activities is fairly equal – 27% of CO2 emissions come from electricity, gas and water supply and hot water supply, 21% of emissions are caused by the transport sector and 20% arise in manufacturing.In 2008 the share of CO2 emissions in transport sector grew to 26%, but the share of electricity and water supply sector reduced to 22% of the total carbon dioxide emissions.

Methane mainly arises in agriculture from livestock sector and waste management, but N2O, in turn, from use of fertilises in agriculture.

Main sources of CH4 and N2O emissions in Latvia are agriculture, forestry sectors and wastewater management sector, followed by the households.

Greenhouse gas emissions in breakdown by economic activities, 2005-2008

 

CO2 (thousand tons)

CH4 (tons)

N2O (tons)

Sectors

2005

2006

2007

2008

2005

2006

2007

2008

2005

2006

2007

2008

Agriculture, hunting and forestry (A)

389

420

452

409

36278

35864

37478

35972

4053

4176

4364

4305

Fishing (B)

109

81

57

48

18

14

10

8

1

1

1

0

Mining and quarrying (C)

30

39

46

47

2

3

3

3

1

1

1

1

Manufacturing (D)

1479

1515

1600

1517

9268

6353

6141

8085

37

41

38

39

Electricity, gas and water supply (E)

2283

2308

2184

2134

7829

5833

5904

6013

34

34

33

32

Construction (F)

245

329

439

395

37

42

39

30

9

11

12

11

Wholesale and retail trade (G)

374

451

566

564

246

294

663

191

15

17

25

17

Hotels and restaurants (H)

22

29

52

36

7

13

26

10

0

1

1

1

Transport, storage and communication (I)

1771

2082

2450

2433

306

235

208

178

146

139

154

154

Financial intermediation (J)

12

13

14

13

3

3

2

2

1

1

0

0

Real estate, renting and business activities (K)

117

191

169

173

49

106

81

118

4

7

6

6

Public administration and defence (L)

138

132

136

119

651

633

562

891

11

11

10

13

Education (M)

42

38

44

42

192

176

157

240

3

3

3

4

Health and social work (N)

72

70

74

58

161

200

169

188

13

42

16

17

Other community, social and personal service activities (O)

85

99

127

113

29342

30093

30786

32641

223

223

221

219

Total in sectors

7171

7796

8412

8101

84389

79863

82229

84571

4550

4707

4886

4820

Households

1394

1448

1563

1466

10275

9889

9626

9509

189

182

175

165

TOTAL

8565

9244

9975

9567

94664

89751

91855

94080

4739

4889

5061

4985

As household emissions are closely related with the use of fossil fuel for transport and heating, the share of CO2 emissions from households is higher than the share of two other greenhouse gases. Households are the main source emitting CO2 from the use of biomass as fuel – 65% in 2005 and 62% in 2008. It can be explained with the fact that households are using approximately 60% of the biomass fuels in Latvia.

Share of CO2, CH4 and N2O emissions from households in 2005-2008

In 2005 emissions of SOx per capita in Latvia comprised 2.1kg, and it is ten times less than total emissions in Europe (EU-27) per capita (19.5kg).In 2005 the CO2 emissions per capita constituted 3.71 ton, and it is more than two times less than total CO2 emissions per capita in EU-27 (9 tons).Nevertheless, the emissions of CH4 and N2O per capita in both Latvia and Europe were almost the same.

Emissions per capita in 2005 (kg, CO2 tons)

 

CO2

CH4

N2O

SOx

NH3

NOx

NMVOC

Latvia

3.71

41.04

2.05

2.10

6.77

20.39

25.82

EU-27

9.00

41.14

2.62

19.47

8.19

27.72

23.30

 

Prepared by Environment and Energy Statistics Section
Andra Lazdiņa
Tel. 67366747