{"apiKey":"46f0f3300a8108eed6266db2c9ee17abd2e0965b","product":"PRO","logConsent":false,"consentCookieExpiry":90,"encodeCookie":false,"subDomains":true,"notifyOnce":false,"rejectButton":true,"toggleType":"slider","closeStyle":"button","settingsStyle":"button","initialState":"OPEN","layout":"SLIDEOUT","position":"LEFT","theme":"LIGHT","necessaryCookies":["AWSELB","AWSELBCORS","local_storage_support_test"],"optionalCookies":[{"name":"Analytical Cookies","label":"Cookies that measure website use","description":"

We use analytical cookies to measure how you use the website so we can improve it based on user needs.

\r\n","cookies":["_ga"," _gid"," _gat"," __utma"," __utmt"," __utmb"," __utmc"," __utmz"," __utmv"," nmstat"],"onAccept":"function(){ (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){\r\n (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),\r\n m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)\r\n })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');\r\nga('create', 'UA-96119487-2', 'auto');\r\nga('send', 'pageview');\r\n\r\n(function() {\r\n var sz = document.createElement('script'); sz.type = 'text/javascript'; sz.async = true;\r\n sz.src = '//siteimproveanalytics.com/js/siteanalyze_5047105.js';\r\n sz.id = 'siteimprovejs';\r\n var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(sz, s);\r\n})();\r\n}","onRevoke":"function(){window['ga-disable-UA-96119487-2'] = true;\r\n(function() {\r\n var sz = document.getElementById(\"siteimprovejs\");\r\n sz .parentNode.removeChild(sz );\r\n document.cookie = \"nmstat=; expires=Thu, 01 Jan 1970 00:00:00 UTC;\"\r\n console.log('removed');\r\n})();}","recommendedState":true,"lawfulBasis":"legitimate interest"},{"name":"Marketing Cookies","label":"Cookies that help with our communications and marketing","description":"

These cookies may be set by third party websites and do things like measure how you view content you came to via Facebook or YouTube.

\r\n","cookies":["_fbp"," fr"," tr"],"onAccept":"function(){ !function(f,b,e,v,n,t,s){if(f.fbq)return;n=f.fbq=function(){n.callMethod?\r\n n.callMethod.apply(n,arguments):n.queue.push(arguments)};if(!f._fbq)f._fbq=n;\r\n n.push=n;n.loaded=!0;n.version='2.0';n.queue=[];t=b.createElement(e);t.async=!0;\r\n t.src=v;s=b.getElementsByTagName(e)[0];s.parentNode.insertBefore(t,s)}(window,\r\n document,'script','https://connect.facebook.net/en_US/fbevents.js');\r\n fbq('init', '306481769774114'); // Insert your pixel ID here.\r\n fbq('track', 'PageView');}","onRevoke":"function(){fbq('consent', 'revoke');}","recommendedState":true,"lawfulBasis":"legitimate interest"},{"name":"Social Sharing Cookies","label":"Social media sharing cookies","description":"

We use some social media sharing plugins to allow you to share certain pages of our website on social media. These plugins use cookies to do things like allowing you to see how many times a page has been shared.

\r\n","cookies":["__atuvc"," __atuvs"],"onAccept":"function(){}","onRevoke":"function(){}","recommendedState":true,"lawfulBasis":"legitimate interest"}],"excludedCountries":[],"debug":false,"setInnerHTML":true,"mode":"GDPR","acceptBehaviour":"all","closeOnGlobalChange":true,"notifyDismissButton":false,"sameSiteCookie":true,"sameSiteValue":"Strict","iabCMP":false,"statement":[],"ccpaConfig":[],"accessibility":{"accessKey":"C","overlay":true,"outline":false},"text":{"title":"This site uses cookies.","intro":"

We use cookies to store information about how you use this website, such as the pages you visit.

\r\n\r\n

You can choose which types of cookie you're happy for us to use. Some cookies are essential, while others help us to improve your experience by providing insights about how the site is being used.

\r\n\r\n

For more detailed information on the cookies we use, please check our Privacy Policy.

\r\n","acceptRecommended":"Accept all cookies","acceptSettings":"Accept all cookies","rejectSettings":"Accept only essential cookies","necessaryTitle":"Strictly necessary cookies","necessaryDescription":"

These essential cookies always need to be on because the website cannot function properly without them. They can only be disabled by changing your browser preferences.

\r\n","thirdPartyTitle":"Warning: Some cookies require your attention.","thirdPartyDescription":"

Consent for the following cookies could not be automatically revoked. Please follow the link(s) below to opt out manually.

\r\n","on":"On","off":"Off","notifyTitle":"Your choice regarding cookies on this site","notifyDescription":"

We use cookies to optimise site functionality and give you the best possible experience.

\r\n","accept":"I accept","reject":"I reject","settings":"Cookie preferences","closeLabel":"Save custom settings","cornerButton":"Set cookie preferences.","landmark":"Cookie preferences.","showVendors":"","thirdPartyCookies":"","readMore":""},"branding":{"fontFamily":"Lato, sans serif","fontSizeTitle":"1.3em","fontSizeHeaders":"1.1","fontSize":"1em","fontColor":"#0b0c0c","backgroundColor":"#ffffff","acceptText":"#ffffff","acceptBackground":"#00823b","toggleText":"#0b0c0c","toggleColor":"#802b7c","toggleBackground":"#f8f8f8","alertText":"#802b7c","alertBackground":"#0b0c0c","buttonIcon":"//fs-filestore-eu.s3-eu-west-1.amazonaws.com/bexley/icons/bex-cookie-corner-transparent.svg","buttonIconWidth":"px","buttonIconHeight":"px","removeAbout":true,"rejectText":null,"rejectBackground":"#ffffff","closeText":"","closeBackground":"","notifyFontColor":"","notifyBackgroundColor ":""},"locales":[]}

Air pollution

Contents

Smoking