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\"Good\"\n : aqi < 100\n ? \"Moderate\"\n : aqi < 150\n ? \"Unhealthy for Sensitive Groups\"\n : aqi < 200\n ? \"Unhealthy\"\n : aqi < 300\n ? \"Very Unhealthy\"\n : \"Hazardous\";\n\nexport let findOpenAQLocation = async ({ lat, lon }: {\n lat: number;\n lon: number;\n}) => {\n console.log({ lat, lon });\n const data = await fetchJSON(\n `${BASE_URL}/v3/locations?`\n + new URLSearchParams({\n coordinates: lat.toPrecision(8) + \",\" + lon.toPrecision(8),\n order_by: \"distance\",\n sort: \"asc\",\n radius: \"250000\",\n dumpRaw: \"false\",\n // entity: \"government\",\n parameter_id: \"2\",\n limit: \"10\",\n page: \"1\",\n offset: \"0\",\n }),\n );\n console.log(data);\n if (!results?.length) throw new Error(\"No AQI locations found\");\n // find first (closest, given sort order) location with active pm25 sensor\n return results.find((location) => {\n const lastUpdated = new Date(\n location.parameters.find((p) => p.parameter === \"pm25\")?.lastUpdated,\n );\n return (lastUpdated\n && new Date().getTime() - lastUpdated.getTime()\n < msDay);\n });\n};\nconst cacheKey = (location: string) => \"easyAQI_locationID_cache_\" + encodeURIComponent(location);\n\nexport async function openAqNowcastAQI({ location_id }) {\n const { results } = await fetchJSON(\n `${BASE_URL}/v3/measurements?`\n + new URLSearchParams({\n limit: \"100\",\n page: \"1\",\n location_id,\n date_from: new Date(Date.now() - 12 * msHour)\n .toISOString(),\n date_to: new Date().toISOString(),\n parameter: \"pm25\",\n order_by: \"datetime\",\n }),\n );\n return nowcastPMAqi(results.map((o) => o.value));\n}\n\nexport async function easyAQI({ location }: {\n location: string;\n}) {\n let openAQLocation = await blob.getJSON(cacheKey(location));\n if (!openAQLocation) {\n const [geo] = await nominatimSearch({\n q: location,\n });\n console.log(\"Searching for openAQ stations near: \" + geo.display_name);\n openAQLocation = await findOpenAQLocation({\n lat: parseFloat(geo.lat),\n lon: parseFloat(geo.lon),\n });\n await blob.setJSON(cacheKey(location), { name: openAQLocation.name, id: openAQLocation.id });\n }\n console.log(\"Pulling pm2.5 from station: \" + openAQLocation.name);\n const aqi = await openAqNowcastAQI({\n location_id: openAQLocation.id,\n });\n return { aqi, severity: nowcastPMAQISeverity(aqi) };\n}","label",[132],"18b93cbe-221a-11f0-9932-569c3dd06744",["D",1745615592763],"openaq",[28],"2d937b6e-2219-11f0-aa73-569c3dd06744","nominatim.ts","133f9428-2219-11f0-89a8-569c3dd06744",91,["D",1745615198252],4,"import { fetchJSON } from \"https://esm.town/v/stevekrouse/fetchJSON\";\n\nexport function nominatimSearch(params: Search): Promise {\n return fetchJSON(\n \"https://nominatim.openstreetmap.org/search?\"\n + new URLSearchParams({\n format: \"json\",\n ...params,\n }),\n );\n}\ninterface Search {\n q?: string;\n street?: string;\n city?: string;\n county?: string;\n state?: string;\n country?: string;\n postalcode?: string;\n}\ninterface Place {\n place_id: number;\n licence: string;\n osm_type: string;\n osm_id: number;\n lat: string;\n lon: string;\n class: string;\n type: string;\n place_rank: number;\n importance: number;\n addresstype: string;\n name: string;\n display_name: string;\n boundingbox: string[];\n}",[148],"82f7ade4-17a3-11f0-9955-569c3dd06744","main.tsx","e20b7a0a-17a2-11f0-add3-569c3dd06744",38,["D",1744465149279],34,"interval","import { email } from \"https://esm.town/v/std/email?v=9\";\nimport { easyAQI } from \"./utils.ts\";\n\nexport async function aqi(interval: Interval) {\n const location = \"prospect heights, brooklyn\"; // <-- change to place, city, or zip code\n const data = await easyAQI({ location });\n if (!interval.lastRunAt) {\n email({\n text:\n `You will now get Air Quality alerts for ${location} if it's unhealthy. It is now ${data.aqi} which is ${data.severity}.`,\n subject: `AQI Alerts for ${location} setup!`,\n });\n }\n if (data.severity.includes(\"Unhealthy\")) {\n email({\n text: \"Air Quality: \" + data.severity,\n subject: `AQI in ${location} is ${data.aqi}`,\n });\n }\n}",[156],"e2112270-17a2-11f0-add3-569c3dd06744","README.md","e2112360-17a2-11f0-add3-569c3dd06744",1,["D",1744464879297],0,"# AQI Alerts\n\nGet email alerts when AQI is unhealthy near you.\n\n![](https://i.imgur.com/hB56X7o.png)\n\n## Set up\n\n1. Click `Fork`\n2. Change `location` (Line 4) to describe your location. It accepts fairly flexible English descriptions which it turns into locations via [nominatim's geocoder API](https://www.val.town/v/stevekrouse/nominatimSearch).\n3. Click `Run`\n\n## Background\n\nThis val uses nominatim's geocoder to get your lat, lon, and air quality data from OpenAQ. It uses EPA's NowCast\nAQI Index calculation and severity levels. Learn more: https://www.val.town/v/stevekrouse.easyAQI",[165],"pulls","branches","forks",73,"envVars",{"_180":167,"_182":169},"connections",{"_180":169,"_181":169},"count","unfilledCount","emptyCount",{"_43":164,"_32":165,"_30":166,"_134":-5,"_41":42,"_40":167,"_136":25,"_38":201,"_13":169,"_33":20,"_35":170,"_24":25,"_141":-5,"_189":202,"_27":203},{"_43":155,"_32":156,"_30":157,"_134":-5,"_41":42,"_40":158,"_136":25,"_38":198,"_13":160,"_33":161,"_35":162,"_24":25,"_141":-5,"_189":199,"_27":200},{"_43":147,"_32":148,"_30":149,"_134":-5,"_41":42,"_40":150,"_136":58,"_38":195,"_13":152,"_33":139,"_35":153,"_24":25,"_141":-5,"_189":196,"_27":197},{"_43":143,"_32":28,"_30":31,"_134":-5,"_41":42,"_40":14,"_136":58,"_38":192,"_13":62,"_33":34,"_35":37,"_24":25,"_141":145,"_189":193,"_27":194},{"_43":131,"_32":132,"_30":133,"_134":-5,"_41":42,"_40":135,"_136":25,"_38":188,"_13":138,"_33":139,"_35":140,"_24":25,"_141":-5,"_189":190,"_27":191},["D",1745615541002],"children",[],[132],["D",1745615592763],[],[28],["D",1745615198252],[],[148],["D",1744465149279],[],[156],["D",1744464879297],[],[165],["D",1744464879286],{"_96":95,"_103":99},{"_96":95,"_97":-5,"_98":99,"_18":55,"_100":101,"_102":25},{"_13":85,"_32":86,"_43":42,"_87":44,"_88":-5,"_89":-5,"_90":-5,"_91":-5,"_92":-5,"_93":45,"_94":95},"ctx",{"_78":-5,"_123":241,"_242":243,"_244":245,"_246":25,"_247":25,"_248":25,"_249":58,"_250":-5,"_251":-7,"_252":-7,"_253":169,"_254":25,"_255":25,"_256":-5,"_257":25,"_258":25,"_259":25,"_260":-5},"ENV",{"_212":213,"_214":215,"_216":86,"_217":218,"_219":220,"_221":222,"_223":224,"_225":226,"_227":228,"_229":230,"_231":232,"_233":234,"_235":236,"_237":238,"_239":240},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","5015b8df46402d8bba4f485ecc37aec202b0e06b","RENDER_GIT_BRANCH","POSTHOG_API_TOKEN","phc_nmoyuAkStEZuUp69rYlg1DZgrIt19Gx0Y4Hwf8tGgJP","POSTHOG_API_HOST","https://wart.val.town","WEB_API_TEMPLATE","https://{val}.web.val.run","APP_URL","https://www.val.town","MODULE_URL","https://esm.town","VANITY_WEB_API_TEMPLATE","https://{label}.val.run/","DENOLS_URL","https://lsp.val.town","NODE_ENV","production","CLOUDFLARE_TURNSTILE_SITE_KEY","0x4AAAAAACtaIZJH7s9rBMZ6","GOOGLE_CLIENT_ID","875989696899-jtsqkhlbdv5jrlsk8631p7ipjg3c6o62.apps.googleusercontent.com","STRIPE_PUBLISHABLE_KEY","pk_live_51N2zvWEpZTTLipIkVEwXrUG9AT0yeOOEYxszarZT1jpsZV58Ly6wlg3SltZpHN26CUalOBmUSY7adQRQiSkCZz2500qSXNkf8Y","API_URL","https://api.val.town",[],"preferencesKeybindings","default","preferencesTheme","light","preferencesFixers","preferencesCopilot","preferencesSelectionAi","preferencesCloseBrackets","preferencesChatPanelState","preferencesDprint","preferencesDenofmt","notificationCount","flagDenols","isBusinessOrgMember","businessOrgHandle","isBusinessOrgAdmin","isHigherTownieTier","navCollapsed","currentOrgId"]

Diff · v99