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News And Stories
NZ’s underground freshwater quality data publicly accessible
LAWA (Land, Air, Water Aotearoa) has released a new online topic that shows the quality of New Zealand’s vital underground water resources. The Groundwater Quality topic makes monitoring data from almost 800 wells publicly accessible.
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Monitoring
All regional councils and unitary authorities in New Zealand monitor water quality in their waterways as part of their State of the Environment monitoring programme. The monitoring is usually done monthly on sites that are part of a monitoring network.
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News And Stories
Data reveals the impact of land cover on river water quality
Today, the team at Land, Air, Water Aotearoa (LAWA) released the annual update of New Zealand’s river water quality monitoring data. Data analysis by Cawthron Institute has revealed water quality is poorest in New Zealand’s urban waterways and a large percentage of rivers in catchments dominated by...
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Factsheets
Calculating water quality trends in rivers and lakes
A trend in water quality data indicates that measured values have been overall rising or falling over a time period. LAWA displays trends for the last 5, 10 and 15 years for the river and lake water quality data. A trend may be classified as indeterminate if there is insufficient evidence to determ...
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State of the Environment (SOE) monitoring
Under the Resource Management Act 1991 (RMA), councils must undertake SOE monitoring in order to "effectively carry out their functions". Or simply put, to check if desired environmental results are being achieved, e.g. meeting an environmental standard or guideline. New Zealand's regional and un...
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National Environmental Monitoring Standards
A set of National Environmental Monitoring Standards (NEMS) have been developed to describe best practice for implementing continuous measurement of a range of environmental parameters, the appropriate quality coding of data, and relevant supporting information for the standard. Learn more about NE...
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News And Stories
Improvements to flood monitoring equipment for Manawatu
A taller and improved monitoring station is in place alongside the Manawatu River beside the old Teachers’ College where it will be used by Horizons Regional Council for flood monitoring and protection.
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News And Stories
Surge in water data for World Rivers Day
To mark World Rivers Day this Sunday, regional councils are releasing their latest water quality data on the Land, Air, Water, Aotearoa website, which this year includes lake quality monitoring. Launched in March 2014, www.lawa.org.nz began reporting water quality results at 1100 river sites. Since...
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Factsheets
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Land
Calculating land cover trend
What is land cover trend? The land cover trend describes the change in land cover state over a defined time period (e.g. between the 1996 and 2018 snapshot dates).
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Groundwater
Calculating groundwater quality trends
What do we mean by ‘trend’? Groundwater quality is always changing. It may show short-term changes, like responses to rainfall events, chemical spills or groundwater pumping. It may show seasonal cycles, and it may respond differently to periods of wet or dry years. On top of these shorter-term vari...
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News And Stories
Summer swim monitoring back in the spotlight
Regional council scientists are back splashing around in the surf this month as weekly beach monitoring has resumed around the country. Results of the testing is now available on the environmental monitoring website Land, Air, Water Aotearoa (LAWA).
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Factsheets
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Air Quality Topic
Q&A: Air pollution in New Zealand towns
What does the LAWA Air Quality National Picture Summary 2023 tell us about air quality in NZ towns? The LAWA Air Quality National Picture Summary update in 2023 presents an overview of particle (PM) air pollution levels, trends, and sources in New Zealand towns that are monitored by regional council...
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