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GEO Brasil - UNEP

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5.1.1 The Present Situation ........................................................... 78<br />

5.1.2 Urban-Industrial Supply – Contamination by Tributary<br />

..... 80<br />

5.1.3 Irrigation ................................................................................ 82<br />

5.4.1 Navigation .............................................................................. 83<br />

5.1.5 Hydro-energy Use..................................................................<br />

84<br />

5.1.6 Natural Environment ............................................................. 85<br />

5.1.7 Critical Events ....................................................................... 85<br />

5.2 Undergr<br />

ground Waters in Brazil ............................................. 87<br />

5.2.1 From om the Well ell to Undergr<br />

ground Flow Systems .................... 87<br />

5.2.2 Hydro o Climactic Regime and Undergr<br />

ground<br />

Water Rechar<br />

echarge<br />

ge......................................................................<br />

89<br />

5.2.3 Types of Aquifers ................................................................... 90<br />

5.2.4 Contamination Agents ...........................................................91<br />

5.2.5 Hydro-GeologicalProvinces in Brazil...................................<br />

92<br />

5.2.6 Undergr<br />

ground Water Potentials in Brazil ............................. 94<br />

5.2.7 The Quality of Undergr<br />

ground Water<br />

...................................... 95<br />

5.2.8 Demands and Current Uses ................................................. 96<br />

5.2.9 Legal and Institutional Framework<br />

ramework.......................................<br />

98<br />

The State of For<br />

orests<br />

ests..............................................................<br />

99<br />

The State of the Atmosphere ............................................. 109<br />

7.1 Main Atmospheric Pollutants and their Impacts<br />

on Living Beings..................................................................<br />

109<br />

7.2 The Ozone Layer Reduction Problem<br />

oblem..................................<br />

110<br />

7.3 The Greenhouse Effect Increase Issue ................................ 111<br />

7.4 Brazil and the Climatic Change Convention ...................... 113<br />

7.5 Emissions Due to Energy Use.............................................<br />

114<br />

7.6 Emissions Due to Soil use Changes .................................. 115<br />

7.7 Relative Participation of Emission Sources<br />

........................117<br />

7.8 What Brazil is doing to Fight the Problems<br />

Observed in the Atmosphere ................................................117<br />

The State of Activities in<br />

Marine and Coastal Areas....................................................<br />

118<br />

8.1 Pressure on Marine and Coastal Environments ................ 119<br />

8.2 Habitat Fragmentation (erosion, sedimentation<br />

and siltation) ....................................................................... 120<br />

8.3 Human Health and Quality of Life ...................................... 122<br />

8.4 Maritime Trade<br />

..................................................................... 124<br />

8.5 Tourism<br />

ourism.................................................................................<br />

125<br />

8.6 Discharges into the Sea ..................................................... 126<br />

8.7 Oil Extraction ........................................................................ 127<br />

8.8 Oil Pollution..........................................................................<br />

127

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