LAWA connects you with the environment by sharing scientific data.
We are committed to providing open access to environmental data to support transparency, research, and informed decision-making. Many of our datasets are made available under the Creative Commons Attribution 4.0 International License (CC BY 4.0).
If you plan to use LAWA data, please:
• Check the metadata for each dataset to confirm its licensing status.
• Acknowledge LAWA and the relevant partner agency when using or sharing data.
• Contact the LAWA team at info@lawa.org.nz, if you have questions about data use, attribution, or licensing.
This data file contains daily average PM2.5 and PM10 data from air quality monitoring sites over the last nine years (2016-2024), and 10-year trend results. Data file published: 11 August 2025.
Land Air Water Aotearoa Terms of Use
We are committed to providing open access to environmental data to support transparency, research, and informed decision-making. Many of our datasets are made available under the Creative Commons Attribution 4.0 International License (CC BY 4.0), which allows you to:
• Copy, share, and adapt the data for any purpose, including commercial use.
• Provide appropriate credit to LAWA and its partner organisations.
• Indicate if changes were made to the data.
However, some datasets do not contain explicit licensing information. In these cases, the data is shared in good faith to support transparency and access to environmental information but should not be assumed to be open-licensed unless clearly stated in the metadata.
We are actively working to clarify licensing information and increase the number of datasets that are openly licensed under CC BY 4.0 or equivalent open data terms.
If you plan to use LAWA data, please:
• Check the metadata for each dataset to confirm its licensing status.
• Acknowledge LAWA and the relevant partner agency when using or sharing data.
• Contact the LAWA team at info@lawa.org.nz, if you have questions about data use, attribution, or licensing.
LAWA provides this information in good faith to support open access to estuary health data collected by LAWA partners. While every reasonable effort has been made to ensure the accuracy and completeness of the data, LAWA and its partner organisations make no warranty, express or implied, regarding its accuracy, reliability, currency, or fitness for any particular purpose.
To the fullest extent permitted by law, LAWA and its partners accept no liability for any loss, damage, cost, or expense (including indirect or consequential loss) arising from the use of, or reliance on, this information, or from any error, omission, or other deficiency in the data.
Use of this dataset is at the user’s own risk and constitutes acceptance of this disclaimer. Users are encouraged to acknowledge LAWA as the source when using or sharing this data, in line with open data best practice.
This data file contains faecal indicator bacterial (FIB) monitoring results from council recreational water quality monitoring programmes over the last six years (2019/20 - 2024/25). For some sites, cyanobacteria (potentially toxic algae) results are also available. Data file published: 17 October 2025.
Land Air Water Aotearoa Terms of Use
We are committed to providing open access to environmental data to support transparency, research, and informed decision-making. Many of our datasets are made available under the Creative Commons Attribution 4.0 International License (CC BY 4.0), which allows you to:
• Copy, share, and adapt the data for any purpose, including commercial use.
• Provide appropriate credit to LAWA and its partner organisations.
• Indicate if changes were made to the data.
However, some datasets do not contain explicit licensing information. In these cases, the data is shared in good faith to support transparency and access to environmental information but should not be assumed to be open-licensed unless clearly stated in the metadata.
We are actively working to clarify licensing information and increase the number of datasets that are openly licensed under CC BY 4.0 or equivalent open data terms.
If you plan to use LAWA data, please:
• Check the metadata for each dataset to confirm its licensing status.
• Acknowledge LAWA and the relevant partner agency when using or sharing data.
• Contact the LAWA team at info@lawa.org.nz, if you have questions about data use, attribution, or licensing.
LAWA provides this information in good faith to support open access to estuary health data collected by LAWA partners. While every reasonable effort has been made to ensure the accuracy and completeness of the data, LAWA and its partner organisations make no warranty, express or implied, regarding its accuracy, reliability, currency, or fitness for any particular purpose.
To the fullest extent permitted by law, LAWA and its partners accept no liability for any loss, damage, cost, or expense (including indirect or consequential loss) arising from the use of, or reliance on, this information, or from any error, omission, or other deficiency in the data.
Use of this dataset is at the user’s own risk and constitutes acceptance of this disclaimer. Users are encouraged to acknowledge LAWA as the source when using or sharing this data, in line with open data best practice.
Data file contains monitoring results for common indicators of Estuary Health (mud content, contaminants and estuary macrofauna). Data file published: 15 October 2025.
Land Air Water Aotearoa Terms of Use
We are committed to providing open access to environmental data to support transparency, research, and informed decision-making. Many of our datasets are made available under the Creative Commons Attribution 4.0 International License (CC BY 4.0), which allows you to:
• Copy, share, and adapt the data for any purpose, including commercial use.
• Provide appropriate credit to LAWA and its partner organisations.
• Indicate if changes were made to the data.
However, some datasets do not contain explicit licensing information. In these cases, the data is shared in good faith to support transparency and access to environmental information but should not be assumed to be open-licensed unless clearly stated in the metadata.
We are actively working to clarify licensing information and increase the number of datasets that are openly licensed under CC BY 4.0 or equivalent open data terms.
If you plan to use LAWA data, please:
• Check the metadata for each dataset to confirm its licensing status.
• Acknowledge LAWA and the relevant partner agency when using or sharing data.
• Contact the LAWA team at info@lawa.org.nz, if you have questions about data use, attribution, or licensing.
LAWA provides this information in good faith to support open access to estuary health data collected by LAWA partners. While every reasonable effort has been made to ensure the accuracy and completeness of the data, LAWA and its partner organisations make no warranty, express or implied, regarding its accuracy, reliability, currency, or fitness for any particular purpose.
To the fullest extent permitted by law, LAWA and its partners accept no liability for any loss, damage, cost, or expense (including indirect or consequential loss) arising from the use of, or reliance on, this information, or from any error, omission, or other deficiency in the data.
Use of this dataset is at the user’s own risk and constitutes acceptance of this disclaimer. Users are encouraged to acknowledge LAWA as the source when using or sharing this data, in line with open data best practice.
This data file contains the monitoring results for groundwater quality samples (2004 - 2024), and state and trend results for well sites throughout New Zealand. Data file published: 17 October 2025.
Land Air Water Aotearoa Terms of Use
We are committed to providing open access to environmental data to support transparency, research, and informed decision-making. Many of our datasets are made available under the Creative Commons Attribution 4.0 International License (CC BY 4.0), which allows you to:
• Copy, share, and adapt the data for any purpose, including commercial use.
• Provide appropriate credit to LAWA and its partner organisations.
• Indicate if changes were made to the data.
However, some datasets do not contain explicit licensing information. In these cases, the data is shared in good faith to support transparency and access to environmental information but should not be assumed to be open-licensed unless clearly stated in the metadata.
We are actively working to clarify licensing information and increase the number of datasets that are openly licensed under CC BY 4.0 or equivalent open data terms.
If you plan to use LAWA data, please:
• Check the metadata for each dataset to confirm its licensing status.
• Acknowledge LAWA and the relevant partner agency when using or sharing data.
• Contact the LAWA team at info@lawa.org.nz, if you have questions about data use, attribution, or licensing.
LAWA provides this information in good faith to support open access to estuary health data collected by LAWA partners. While every reasonable effort has been made to ensure the accuracy and completeness of the data, LAWA and its partner organisations make no warranty, express or implied, regarding its accuracy, reliability, currency, or fitness for any particular purpose.
To the fullest extent permitted by law, LAWA and its partners accept no liability for any loss, damage, cost, or expense (including indirect or consequential loss) arising from the use of, or reliance on, this information, or from any error, omission, or other deficiency in the data.
Use of this dataset is at the user’s own risk and constitutes acceptance of this disclaimer. Users are encouraged to acknowledge LAWA as the source when using or sharing this data, in line with open data best practice.
This data file contains the monitoring results of lake water quality samples (2004-2023), and results from calculations for TLI, state and trends in Sept 2024. Data file published: 21 October 2024.
Coming soon.... updated dataset (2004-2024) will be published in October 2025.
Land Air Water Aotearoa Terms of Use
We are committed to providing open access to environmental data to support transparency, research, and informed decision-making. Many of our datasets are made available under the Creative Commons Attribution 4.0 International License (CC BY 4.0), which allows you to:
• Copy, share, and adapt the data for any purpose, including commercial use.
• Provide appropriate credit to LAWA and its partner organisations.
• Indicate if changes were made to the data.
However, some datasets do not contain explicit licensing information. In these cases, the data is shared in good faith to support transparency and access to environmental information but should not be assumed to be open-licensed unless clearly stated in the metadata.
We are actively working to clarify licensing information and increase the number of datasets that are openly licensed under CC BY 4.0 or equivalent open data terms.
If you plan to use LAWA data, please:
• Check the metadata for each dataset to confirm its licensing status.
• Acknowledge LAWA and the relevant partner agency when using or sharing data.
• Contact the LAWA team at info@lawa.org.nz, if you have questions about data use, attribution, or licensing.
LAWA provides this information in good faith to support open access to estuary health data collected by LAWA partners. While every reasonable effort has been made to ensure the accuracy and completeness of the data, LAWA and its partner organisations make no warranty, express or implied, regarding its accuracy, reliability, currency, or fitness for any particular purpose.
To the fullest extent permitted by law, LAWA and its partners accept no liability for any loss, damage, cost, or expense (including indirect or consequential loss) arising from the use of, or reliance on, this information, or from any error, omission, or other deficiency in the data.
Use of this dataset is at the user’s own risk and constitutes acceptance of this disclaimer. Users are encouraged to acknowledge LAWA as the source when using or sharing this data, in line with open data best practice.
This data file contains the data shown on the land cover topic. Data file published: June 2021
There have been changes to some catchments on LAWA since the data file was published. Please get in touch if you are requiring updated land cover statistics for the catchment level.
The land cover statistics available for download are from a reclassification of the New Zealand Land Cover Database (LCDB) version 5.0 and are published under a Creative Commons Attribution 4.0 International Licence (CC BY 4.0). The New Zealand LCDB v5.0 was created by Manaaki Whenua - Landcare Research New Zealand Ltd.
Land Air Water Aotearoa Terms of Use
We are committed to providing open access to environmental data to support transparency, research, and informed decision-making. Many of our datasets are made available under the Creative Commons Attribution 4.0 International License (CC BY 4.0), which allows you to:
• Copy, share, and adapt the data for any purpose, including commercial use.
• Provide appropriate credit to LAWA and its partner organisations.
• Indicate if changes were made to the data.
However, some datasets do not contain explicit licensing information. In these cases, the data is shared in good faith to support transparency and access to environmental information but should not be assumed to be open-licensed unless clearly stated in the metadata.
We are actively working to clarify licensing information and increase the number of datasets that are openly licensed under CC BY 4.0 or equivalent open data terms.
If you plan to use LAWA data, please:
• Check the metadata for each dataset to confirm its licensing status.
• Acknowledge LAWA and the relevant partner agency when using or sharing data.
• Contact the LAWA team at info@lawa.org.nz, if you have questions about data use, attribution, or licensing.
LAWA provides this information in good faith to support open access to estuary health data collected by LAWA partners. While every reasonable effort has been made to ensure the accuracy and completeness of the data, LAWA and its partner organisations make no warranty, express or implied, regarding its accuracy, reliability, currency, or fitness for any particular purpose.
To the fullest extent permitted by law, LAWA and its partners accept no liability for any loss, damage, cost, or expense (including indirect or consequential loss) arising from the use of, or reliance on, this information, or from any error, omission, or other deficiency in the data.
Use of this dataset is at the user’s own risk and constitutes acceptance of this disclaimer. Users are encouraged to acknowledge LAWA as the source when using or sharing this data, in line with open data best practice.
This data file contains results for macroinvertebrate monitoring by regional councils, unitary authorities, and NIWA in New Zealand. Data file published: 21 October 2024.
Coming soon.... updated dataset (2004-2024) will be published in October 2025.
Land Air Water Aotearoa Terms of Use
We are committed to providing open access to environmental data to support transparency, research, and informed decision-making. Many of our datasets are made available under the Creative Commons Attribution 4.0 International License (CC BY 4.0), which allows you to:
• Copy, share, and adapt the data for any purpose, including commercial use.
• Provide appropriate credit to LAWA and its partner organisations.
• Indicate if changes were made to the data.
However, some datasets do not contain explicit licensing information. In these cases, the data is shared in good faith to support transparency and access to environmental information but should not be assumed to be open-licensed unless clearly stated in the metadata.
We are actively working to clarify licensing information and increase the number of datasets that are openly licensed under CC BY 4.0 or equivalent open data terms.
If you plan to use LAWA data, please:
• Check the metadata for each dataset to confirm its licensing status.
• Acknowledge LAWA and the relevant partner agency when using or sharing data.
• Contact the LAWA team at info@lawa.org.nz, if you have questions about data use, attribution, or licensing.
LAWA provides this information in good faith to support open access to estuary health data collected by LAWA partners. While every reasonable effort has been made to ensure the accuracy and completeness of the data, LAWA and its partner organisations make no warranty, express or implied, regarding its accuracy, reliability, currency, or fitness for any particular purpose.
To the fullest extent permitted by law, LAWA and its partners accept no liability for any loss, damage, cost, or expense (including indirect or consequential loss) arising from the use of, or reliance on, this information, or from any error, omission, or other deficiency in the data.
Use of this dataset is at the user’s own risk and constitutes acceptance of this disclaimer. Users are encouraged to acknowledge LAWA as the source when using or sharing this data, in line with open data best practice.
This file contains the state and trend results for macroinvertebrate monitoring sites in rivers throughout New Zealand. Data file published: 21 October 2024.
Coming soon.... updated state and trend results (2025) will be published in October 2025.
Land Air Water Aotearoa Terms of Use
We are committed to providing open access to environmental data to support transparency, research, and informed decision-making. Many of our datasets are made available under the Creative Commons Attribution 4.0 International License (CC BY 4.0), which allows you to:
• Copy, share, and adapt the data for any purpose, including commercial use.
• Provide appropriate credit to LAWA and its partner organisations.
• Indicate if changes were made to the data.
However, some datasets do not contain explicit licensing information. In these cases, the data is shared in good faith to support transparency and access to environmental information but should not be assumed to be open-licensed unless clearly stated in the metadata.
We are actively working to clarify licensing information and increase the number of datasets that are openly licensed under CC BY 4.0 or equivalent open data terms.
If you plan to use LAWA data, please:
• Check the metadata for each dataset to confirm its licensing status.
• Acknowledge LAWA and the relevant partner agency when using or sharing data.
• Contact the LAWA team at info@lawa.org.nz, if you have questions about data use, attribution, or licensing.
LAWA provides this information in good faith to support open access to estuary health data collected by LAWA partners. While every reasonable effort has been made to ensure the accuracy and completeness of the data, LAWA and its partner organisations make no warranty, express or implied, regarding its accuracy, reliability, currency, or fitness for any particular purpose.
To the fullest extent permitted by law, LAWA and its partners accept no liability for any loss, damage, cost, or expense (including indirect or consequential loss) arising from the use of, or reliance on, this information, or from any error, omission, or other deficiency in the data.
Use of this dataset is at the user’s own risk and constitutes acceptance of this disclaimer. Users are encouraged to acknowledge LAWA as the source when using or sharing this data, in line with open data best practice.
This file contains data for water quality samples collected by regional councils, unitary authorities and NIWA, for monitoring sites in the North Island (Auckland, Bay of Plenty, Gisborne, Hawke's Bay and Wellington regions). Date file published: 21 October 2024. Please contact us for this datafile.
Coming soon.... updated dataset (2004-2024) will be published in October 2025.
Land Air Water Aotearoa Terms of Use
We are committed to providing open access to environmental data to support transparency, research, and informed decision-making. Many of our datasets are made available under the Creative Commons Attribution 4.0 International License (CC BY 4.0), which allows you to:
• Copy, share, and adapt the data for any purpose, including commercial use.
• Provide appropriate credit to LAWA and its partner organisations.
• Indicate if changes were made to the data.
However, some datasets do not contain explicit licensing information. In these cases, the data is shared in good faith to support transparency and access to environmental information but should not be assumed to be open-licensed unless clearly stated in the metadata.
We are actively working to clarify licensing information and increase the number of datasets that are openly licensed under CC BY 4.0 or equivalent open data terms.
If you plan to use LAWA data, please:
• Check the metadata for each dataset to confirm its licensing status.
• Acknowledge LAWA and the relevant partner agency when using or sharing data.
• Contact the LAWA team at info@lawa.org.nz, if you have questions about data use, attribution, or licensing.
LAWA provides this information in good faith to support open access to estuary health data collected by LAWA partners. While every reasonable effort has been made to ensure the accuracy and completeness of the data, LAWA and its partner organisations make no warranty, express or implied, regarding its accuracy, reliability, currency, or fitness for any particular purpose.
To the fullest extent permitted by law, LAWA and its partners accept no liability for any loss, damage, cost, or expense (including indirect or consequential loss) arising from the use of, or reliance on, this information, or from any error, omission, or other deficiency in the data.
Use of this dataset is at the user’s own risk and constitutes acceptance of this disclaimer. Users are encouraged to acknowledge LAWA as the source when using or sharing this data, in line with open data best practice.
This file contains data for water quality samples collected by regional councils and NIWA, for monitoring sites in the North Island (Manawatu-Whanganui, Northland, Taranaki and Waikato regions). Date file published: 21 October 2024. Please contact us for this datafile.
Coming soon.... updated dataset (2004-2024) will be published in October 2025.
Land Air Water Aotearoa Terms of Use
We are committed to providing open access to environmental data to support transparency, research, and informed decision-making. Many of our datasets are made available under the Creative Commons Attribution 4.0 International License (CC BY 4.0), which allows you to:
• Copy, share, and adapt the data for any purpose, including commercial use.
• Provide appropriate credit to LAWA and its partner organisations.
• Indicate if changes were made to the data.
However, some datasets do not contain explicit licensing information. In these cases, the data is shared in good faith to support transparency and access to environmental information but should not be assumed to be open-licensed unless clearly stated in the metadata.
We are actively working to clarify licensing information and increase the number of datasets that are openly licensed under CC BY 4.0 or equivalent open data terms.
If you plan to use LAWA data, please:
• Check the metadata for each dataset to confirm its licensing status.
• Acknowledge LAWA and the relevant partner agency when using or sharing data.
• Contact the LAWA team at info@lawa.org.nz, if you have questions about data use, attribution, or licensing.
LAWA provides this information in good faith to support open access to estuary health data collected by LAWA partners. While every reasonable effort has been made to ensure the accuracy and completeness of the data, LAWA and its partner organisations make no warranty, express or implied, regarding its accuracy, reliability, currency, or fitness for any particular purpose.
To the fullest extent permitted by law, LAWA and its partners accept no liability for any loss, damage, cost, or expense (including indirect or consequential loss) arising from the use of, or reliance on, this information, or from any error, omission, or other deficiency in the data.
Use of this dataset is at the user’s own risk and constitutes acceptance of this disclaimer. Users are encouraged to acknowledge LAWA as the source when using or sharing this data, in line with open data best practice.
This file contains data for water quality samples collected by regional councils, unitary authorities and NIWA, for monitoring sites in the South Island. Date file published: 21 October 2024. Please contact us for this datafile.
Coming soon.... updated dataset (2004-2024) will be published in October 2025.
Land Air Water Aotearoa Terms of Use
We are committed to providing open access to environmental data to support transparency, research, and informed decision-making. Many of our datasets are made available under the Creative Commons Attribution 4.0 International License (CC BY 4.0), which allows you to:
• Copy, share, and adapt the data for any purpose, including commercial use.
• Provide appropriate credit to LAWA and its partner organisations.
• Indicate if changes were made to the data.
However, some datasets do not contain explicit licensing information. In these cases, the data is shared in good faith to support transparency and access to environmental information but should not be assumed to be open-licensed unless clearly stated in the metadata.
We are actively working to clarify licensing information and increase the number of datasets that are openly licensed under CC BY 4.0 or equivalent open data terms.
If you plan to use LAWA data, please:
• Check the metadata for each dataset to confirm its licensing status.
• Acknowledge LAWA and the relevant partner agency when using or sharing data.
• Contact the LAWA team at info@lawa.org.nz, if you have questions about data use, attribution, or licensing.
LAWA provides this information in good faith to support open access to estuary health data collected by LAWA partners. While every reasonable effort has been made to ensure the accuracy and completeness of the data, LAWA and its partner organisations make no warranty, express or implied, regarding its accuracy, reliability, currency, or fitness for any particular purpose.
To the fullest extent permitted by law, LAWA and its partners accept no liability for any loss, damage, cost, or expense (including indirect or consequential loss) arising from the use of, or reliance on, this information, or from any error, omission, or other deficiency in the data.
Use of this dataset is at the user’s own risk and constitutes acceptance of this disclaimer. Users are encouraged to acknowledge LAWA as the source when using or sharing this data, in line with open data best practice.
This file contains the state and trend results for river water quality monitoring sites in rivers throughout New Zealand. Data file published: 21 October 2024.
Coming soon.... updated state and trend results (2025) will be published in October 2025.
Land Air Water Aotearoa Terms of Use
We are committed to providing open access to environmental data to support transparency, research, and informed decision-making. Many of our datasets are made available under the Creative Commons Attribution 4.0 International License (CC BY 4.0), which allows you to:
• Copy, share, and adapt the data for any purpose, including commercial use.
• Provide appropriate credit to LAWA and its partner organisations.
• Indicate if changes were made to the data.
However, some datasets do not contain explicit licensing information. In these cases, the data is shared in good faith to support transparency and access to environmental information but should not be assumed to be open-licensed unless clearly stated in the metadata.
We are actively working to clarify licensing information and increase the number of datasets that are openly licensed under CC BY 4.0 or equivalent open data terms.
If you plan to use LAWA data, please:
• Check the metadata for each dataset to confirm its licensing status.
• Acknowledge LAWA and the relevant partner agency when using or sharing data.
• Contact the LAWA team at info@lawa.org.nz, if you have questions about data use, attribution, or licensing.
LAWA provides this information in good faith to support open access to estuary health data collected by LAWA partners. While every reasonable effort has been made to ensure the accuracy and completeness of the data, LAWA and its partner organisations make no warranty, express or implied, regarding its accuracy, reliability, currency, or fitness for any particular purpose.
To the fullest extent permitted by law, LAWA and its partners accept no liability for any loss, damage, cost, or expense (including indirect or consequential loss) arising from the use of, or reliance on, this information, or from any error, omission, or other deficiency in the data.
Use of this dataset is at the user’s own risk and constitutes acceptance of this disclaimer. Users are encouraged to acknowledge LAWA as the source when using or sharing this data, in line with open data best practice.