Cookies used on the air quality pages
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When we provide services, we want to make them easy, useful and reliable. Where services are delivered on the internet, this sometimes involves placing small amounts of information on your device, for example, computer or mobile phone. These include small files known as cookies. They cannot be used to identify you personally.
These pieces of information are used to improve services for you through, for example:
- enabling a service to recognise your device so you don't have to give the same information several times during one task
- recognising that you may already have given a username and password so you don't need to do it for every web page requested
- measuring how many people are using services, so they can be made easier to use and there's enough capacity to ensure they are fast
- analysing anonymised data to help us understand how people interact with govt services so we can make them better.
You can manage these small files and learn more about them from the article Internet Browser cookies - what they are and how to manage them.
If you'd like to learn how to remove cookies set on your device, visit the About Cookies website.
2. Cookies used on this website
Measuring website usage (Google Analytics)
This website uses Google Analytics to collect information about how people use this site. We do this to make sure it's meeting its users' needs and to understand how we could do it better.
Google Analytics stores information about what pages you visit, how long you are on the site, how you got here and what you click on. We do not collect or store your personal information (e.g. your name or address) so this information cannot be used to identify who you are. We do not allow Google to use or share our analytics data.
The following cookies are set by Google Analytics:
|_utma||randomly generated number||2 years|
|_utmb||randomly generated number||30 minutes|
|_utmc||randomly generated number||when you close your browser|
|_utmz||randomly generated number and information on how the site was reached (e.g. direct or via a link, organic search or paid search)||6 months|
3. How to control and delete cookies
However, if you wish to restrict or block the cookies which are set by our websites, or indeed any other website, you can do this through your browser settings. The 'Help' function within your browser should tell you how.
Alternatively, you may wish to visit www.aboutcookies.org which contains comprehensive information on how to do this on a wide variety of browsers. You will also find details on how to delete cookies from your machine as well as more general information about cookies.
Please be aware that restricting cookies may impact on the functionality of our website.