The Heinz Center's State of the Nation's Ecosystems
ecosystem: Core National Indicators
indicator Name: Chemical Contamination:Contaminants above standards and guidelines
page # in printed report: 49
location on page: na
data source: U.S. Geological Survey National Water Quality Assessment (NAWQA) Program. Coverage: lower 48 states
notes: please see technical notes for further details on accessing these data from their original source; this data table comes from a specific graphic in The State of the Nation's Ecosystems report (www.heinzctr.org/ecosystems)
units: Percentage of sites or samples exceeding indicated number of standards or guidelines

Streams
1992-1998
1992-1998
Future
exceed 1 (aquatic life)
24.5
    
exceed 2 or 3 (aquatic life)
27.4
    
exceed 4 or more (aquatic life)
25.5
    
exceed 1 (human health)
  
11.3
  
exceed 2 or 3 (human health
  
1.9
  
exceed 4 or more (human health)
  
0
  
Ground Water
1992-1998
1992-1998
Future
exceed 1 (aquatic life)
#N/A
    
exceed 2 or 3 (aquatic life)
#N/A
    
exceed 4 or more (aquatic life)
#N/A
    
exceed 1 (human health)
  
23.2
  
exceed 2 or 3 (human health
  
3.3
  
exceed 4 or more (human health)
  
0
  
Stream Sediment
1992-1998
Future
exceed 1 (aquatic life)
20.6
  
exceed 2 or 3 (aquatic life)
15.2
  
exceed 4 or more (aquatic life)
12.1
  
exceed 1 (human health)
#N/A
  
exceed 2 or 3 (human health
    
exceed 4 or more (human health)
    
Fish
 
1992-1998
Future
exceed 1 (aquatic life)
40.5
  
exceed 2 or 3 (aquatic life)
10
  
exceed 4 or more (aquatic life)
0
  
Coastal Sediments
Significance
  1990-1997 1999-2000 Future Years
Possible effects (1-4 contaminants)
 19 34  
Possible effects (5 or more contaminants)
 39 8  
Probable effects (1 or more contaminants)
 2 7  
Coastal fish
Significance
 
1990-1997
Future Years
Exceed 1 or more (human health)
4
  

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