Table of Contents 1 64

Sandimirov S. Pollution of the Sediments of the Paz River basin / In State of the environment in the Norwegian, Finnish and Russian border area. The Finnish Environment. Finland, Jyvaskyla: Kopijyva Oy. 2007, №6, 98p.

Table of Contents 2
1. Summary of the Sediment Investigations 4
1.1. Introduction 4
1.2. Materials And Investigation Techniques 5
1.3. Discussion 5
1.3.1. Background concentrations of the elements 5
1.3.2. Vertical distribution of elements in lake sediment cores 6
1.3.3. Distribution of elements in the surface sediments 7
1.3.4. Contamination degree of Hakanson 8
1.4. Recommendations to the monitoring program 10
1.4.1. Obligatory monitoring - minimum quantity of researches carried out on seasonsannually 10
1.4.1.1. Concrete lakes 10
1.4.1.2. Controllable parameters, the suggested approach and method 10
1.4.1.3. Frequency and periodicity of sampling - once a year, in September 10
1.4.2. The comprehensive monitoring, spent ones in 3 - 4 years 10
1.4.2.1. Concrete lakes - all lakes investigated during this monitoring program. 10
1.4.2.2. Controllable parameters, the suggested approach and method 10
1.4.2.3. Frequency and periodicity of sampling - once in 3 - 4 years, in September 10
2. Heavy Metals in the Sediments of the Paz System 10
2.1. Background Concentrations of Heavy Metals 10
2.2. Vertical Distribution of Heavy Metals in Bottom Sediments 11
2.3. Distribution of Heavy Metals in the Top Layers of Lake Sediments 11
2.4. The Factor and Degree of Contamination of Lake Sediments 13
3. Pollution of the Sediments of the Russian Lakes of the Paz River System 15
3.1. Background Concentrations of Heavy Metals 15
3.2. Vertical Distribution of Heavy Metals in Bottom Sediments 15
3.3. Distribution of Heavy Metals in the Top Layers of Lake Sediments 19
3.4. The Factor and Degree of Contamination of Lake Sediments 21
4. Pollution of the Sediments of the Norwegian Lakes of the Paz River basin 27
4.1. Background Concentrations 27
4.2. Vertical Distribution of Heavy Metals in Bottom Sediments 28
4.3. Distribution of heavy metals in the top layers of lake sediments 28
4.4. The Factor and Degree of Contamination of Lake Sediments 28
5. Pollution of the Sediments of the Finnish Lakes of the Inari Lake - Paz River basin 35
5.1. Background Concentrations 35
5.2. Vertical Distribution of Heavy Metals in Bottom Sediments 35
5.3. Distribution of Heavy Metals in the Top Layers of Lake Sediments 36
5.4. The Factor and Degree of Contamination of Lake Sediments 36
6. References 60

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