vaata faili - Viru Peipsi

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soodsad eeldused sinivetikate vohamiseks Peipsi järves ja Võrtsjärves aga ka rannikumeres. Puudujääv lämmastik fikseeritakse sinivetikate poolt atmosfäärist. 7. Jõgede veekvaliteedi hea klassi nõuetele vastas 84 lävendist vaid 13 riikliku seire ja lisaprogrammi lävendit. Peamised probleemid on üldlämmastiku ja –fosfori kõrge sisaldus jõevees. Viru ja Peipsi alamvesikonnas on nitraaditundlikud alad ja Lõuna-Eesti väikejõgedes on ebapiisavalt puhastamata väikeasulate heitvee tõttu kõrgenenud fosfori sisaldus. 120
ASSESSMENT OF THE STATUS OF THE RIVERS IN VIRU AND PEIPSI CATCHMENT AREAS FOR COMPILATION OF WATER MANAGEMENT PLANS Summary The aim of the project was assess the chemical and ecological status of rivers in Viru and Peipsi catchment areas and classification of rivers according to physical-chemical indicators. For analysing data of the national monitoring programme in 31monitoring stations , additional monitoring in 52 stations was carried out. The list of additionally monitored rivers was chosen by the Life programme coordinator. First of all were chosen objects of insufficient water quality due to waste water impact, bur also stations of agricultural and background catchment areas. The report contains following chapters 6. Main task and investigated objects. 7. Overview of hydrology of rivers and land-use in the catchment area 8. Assessment of human impact: analyses of point sources, pollution ingredients of the waste water, agricultural diffuse pollution, background load and source apportionment of different pollution sources 9. Status of rivers and adequacy to the quality requirements: Drinking Water Directive, Fish Directive, Directive of path waters, Nitrate directive. 10. Overview of the monitoring programme and analyse: the water quality classes of rivers and analyse of quality indicators of water classes; typisation of rivers, proposals for future in monitoring programmes 11. There are several data in the Annexes for compilation of water management plans Despite of construction new waste-water plants the chemical status of rivers was worse than expected. In most cases plants do not work as needed and downstream of discharge of waste water are rivers in bad conditions and do not correspond to the requirements. Discharges from 329 point-sources don not correspond to the requirements in 186 cases. The main problem in fish rivers is high content of nitite and ammonium-nitrogen The runoff from agricultural catchments is small and in the same level as background values from natural catchments due to low level of agricultural pollution and use of fertilizers. The selfpurification processes and retention-time are also impontant factors in decreasing agricultural pollution Long-term trends show decreasing nitrogen content in Peipsi rivers, but phosphorus content has been in the same level. Decreasing N/P ratio causes better conditions for cyanobacteria growth in the lake and coastal areas Only 13 rivers stations from 84 corresponded to the good quality class requirements. The main problems were higher content of nutrients in the rivers 121
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TALLINNA TEHNIKAÜLIKOOL Keskkonnat
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1. Sissejuhatus Vee kaitsel ja veev
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2. Uurimistöö eesmärk ja metoodi
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32 Narva Narva 7 56060 R, F, I XXL,
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2.2.2 Täiendav seire Täiendava se
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3. Jõgede valgalade üldine iseloo
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leostumise tagajärjel toitainete h
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4. Inimmõju hindamine 4.1. Punktal
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Joonis 4.1. Keskkonda juhitava heit
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Page 21 and 22:
Page 23 and 24:
2- BHT 7 HA N üld P üld SO 4 Kvar
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EL rahaline toetus ning loodetavast
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Tabel 4.13. AS Repo Vabrikud sadeve
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Tabel 4.17. Elva linna biopuhasti r
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III 2003 8,00 33,6 (4,2) 40 (5,00)
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öelda kõrval asuva Orava järve k
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Rakvere 1595 10269 (6,4) Võru 1146
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Tabel 4.33. Ühe aastaringi statist
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Tabel 4.34. Arvutuslik BHT 7 kontse
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4.3. Põllumajanduslik hajureostus
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Tabel 4.38. MK statistik ja toitain
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Taimekaitsevahendite kasutamine 200
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kg/ha 8 7 6 5 4 3 2 1 0 1995 1996 1
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80 mg/l. Kuid samal ajal ulastuslik
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4.4 Jõgede looduslähedane seisund
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Antropogeenne hajukoormus LO LO /
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t/a t/a % t/a % t/a % t/a % t/a Piu
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4.5.1. Toitainete liikumine ja tran
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mis kirjeldavad toitainete liikumis
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Tulemused - toitainete reostused ja
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Fosfori koormus (tonni aastas) 180
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5. Vooluveekogude seisund ja vastav
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(K.Kangur) on näidanud, et Peipsi
Page 69 and 70: 5.3 Lõheliste ja karpkalalaste elu
Page 71 and 72: suveperioodil), ammooniumlämmastik
Page 73 and 74: Karpkalalaste elupaigad Tabel 5.7 E
Page 75 and 76: Emajõgi - ülalpool Tartu heitvee
Page 77 and 78: Narva jõgi - allpool Narva Vesi AS
Page 79 and 80: Pedja jõgi - allpool Jõgeva linna
Page 81 and 82: Narva jõgi - ülalpool Narva Vesi
Page 83 and 84: Selja jõgi - allpool Rakvere Lihak
Page 85 and 86: Ahja jõgi - Lääniste (lõhelised
Page 87 and 88: Selja jõgi - allpool Vastseliina h
Page 89 and 90: Põltsamaa jõgi - ülalpool Põlts
Page 91 and 92: Võhandu jõgi - allpool Räpinat N
Page 93 and 94: Võhandu jõgi - allpool Koreli oja
Page 95 and 96: 5.4 Supluseks kasutatavate veekogud
Page 97 and 98: 5.5. Nitraaditundlik ala Nitraadire
Page 99 and 100: iseloomustab antud piirkonna vooluv
Page 101 and 102: 6. Seireprogrammi ülevaade ja hinn
Page 103 and 104: käitlus, siis senisest suuremat t
Page 105 and 106: Vastavalt Keskkonna ministri määr
Page 107 and 108: ahuldavasse klassi ja ammooniumläm
Page 109 and 110: Põltsamaa jõgi asub nitraaditundl
Page 111 and 112: 6.2. Jõgede tüpiseerimisest Euroo
Page 113 and 114: käsitleti eraldi. Selle analüüsi
Page 115 and 116: BHT 7 väärtuste osas suuri erinev
Page 117 and 118: 6.3 Ettepanekud täiendava veeseire
Page 119: 7. Ettepanekud ja soovitused Viru j
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