Our Water, Our Resource, Our Responsibility Our Water, Our Resource, Our Responsibility www.worldofwater.ie www.worldofwater.ie Module 3: Water Quality Unit 1: Current Status Algal Bloom on a lake shoreline Algal Bloom on a lake shoreline
Our Water, Our Resource, Our Responsibility Module 3: Water Quality Unit 1: Current Status Algal Bloom on a lake shoreline.
Dec 16, 2015
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Our Water, Our Resource, Our ResponsibilityOur Water, Our Resource, Our Responsibilitywww.worldofwater.iewww.worldofwater.ie
Module 3: Water Quality
Unit 1: Current Status
Algal Bloom on a lake shoreline
Algal Bloom on a lake shoreline
Our Water, Our Resource, Our ResponsibilityOur Water, Our Resource, Our Responsibilitywww.worldofwater.iewww.worldofwater.ie
Objectives of this presentation
To look at the extent to which Ireland’s surface waters are less than ‘good status’
To examine the timescale within which serious deterioration has occurred
To consider evidence of recent recovery in water quality
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The current status of water bodies
RBD plans use a five-tier ranking system to classify surface water quality
High, Good, Moderate, Poor and Bad status
Ecological classification combined three factors:
Biology
Supporting water condition (general conditions and specific pollutants)
Supporting hydrology and morphology (physical condition)
“One out and out” principle
Our Water, Our Resource, Our ResponsibilityOur Water, Our Resource, Our Responsibilitywww.worldofwater.iewww.worldofwater.ie
327
219
265
21 11
0
50
100
150
200
250
300
350
High
Good
Moder
ate
PoorBad
Number of Water Bodies
Lake Water Status
Lake Water Status: The National Picture (2008)
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485
1598 1562
751
680
200
400
600
800
1000
1200
1400
1600
High
Good
Moder
ate
PoorBad
River/canals Water Status: The National Picture (2008)
Number of Water Bodies
River Water Status
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The North West and Neagh Bann River Basin Districts
Our Water, Our Resource, Our ResponsibilityOur Water, Our Resource, Our Responsibilitywww.worldofwater.iewww.worldofwater.ie
61
283
342
165
10
0
50
100
150
200
250
300
350
0
2
12
1 1
0
2
4
6
8
10
12
River/canal water interim status in the North Western District
(2008)
Number of Water Bodies
River Water StatusLake Water Status
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River Water Status in the Neagh Bann District
Current Status (2008)
0
76
149
71
151
0
20
40
60
80
100
120
140
160
0
2
12
1 1
0
2
4
6
8
10
12Number of Water Bodies
River Water StatusLake Water Status
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River Interim Status For County Monaghan (2008)
0
21
27
35
3
0
5
10
15
20
25
30
35
0
4
23
8
2
0
5
10
15
20
25
Number of Water Bodies
River Water StatusLake Water Status
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Changes to a typical lake since the 1970s
Sedimentary Record:
Increased phosphorous inputs
from catchment
Increased algal production
Increased organic matter
deposition
1970s catchment
Present day catchment
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19811971 1989
1993 2001 2007
River Water Quality 1971 – 2007 – Case Study
Unpolluted Slightly polluted
Moderately polluted
Seriously polluted
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The good news – some improvements in water quality have been measured since the mid 90s
0
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.1
91-9
4
95-9
7
98-2
000
2001
-03
2004
-05
2006
-07
0
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.1
Dromore River- station 100 Mountain Water- station 650
River phosphorus
levels (mg/lP)
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Where we’re at!
Hard Surface Runoff/Car wash
Illegal dumping Lawn grass -
dumped in streamContaminated
storm water drain
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Poaching and run-off from cattle feeding area
Discharge from site development
Fungus in stream from high strength organic
wastes
Effluent following land-
spreading
Oil-spill incident
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Discussion/Exercise
Read and discuss the River Basin District Management Plan for your area
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