diff --git a/backend/src/index.js b/backend/src/index.js
index 1f7703b..0b654bf 100644
--- a/backend/src/index.js
+++ b/backend/src/index.js
@@ -22,8 +22,8 @@ const startAgenda = async () => {
 	// Local
 	// await agenda.every(CronTime.everyDayAt(23), "retrieveDailyAqi");
 
-	await agenda.every(CronTime.everyDayAt(16, 5), "retrieveDailyAqi");
-	await agenda.every(CronTime.everyHour(), "getHourlyAqi");
+	await agenda.every(CronTime.everyDayAt(16, 55), "retrieveDailyAqi");
+	// await agenda.every(CronTime.everyHour(), "getHourlyAqi");
 };
 
 mongoose
diff --git a/backend/src/jobs/definitions/retrieveDailyAqi.js b/backend/src/jobs/definitions/retrieveDailyAqi.js
index a9290eb..7d0ba70 100644
--- a/backend/src/jobs/definitions/retrieveDailyAqi.js
+++ b/backend/src/jobs/definitions/retrieveDailyAqi.js
@@ -1,7 +1,9 @@
 const { aqiApiToken, predictionServiceUrl } = require("../../config/config");
 const axios = require("axios");
 const logger = require("../../config/logger");
-const HourlyAQIModel = require("../../models/HourlyAQI");
+
+const AirQualityModel = require("../../models/AirQuality");
+const { mapServerTimeToVnTime } = require("../../helper/serverDate");
 
 const retrieveDailyAqi = async (agenda) => {
 	try {
@@ -10,10 +12,63 @@ const retrieveDailyAqi = async (agenda) => {
 			"retrieveDailyAqi",
 			async function (job, done) {
 				try {
-					const hourlyAqi = await HourlyAQIModel.find();
+					const { offsetToday } = mapServerTimeToVnTime();
+					const gmt7Offset = 7 * 60 * 60 * 1000;
+					var offsetNextDay = new Date(offsetToday.getTime() + 24 * 3600 * 1000)
+						.toISOString()
+						.replace(/T(.+)/g, "T00:00:00.000Z");
+
+					let hourlyAqi = await AirQualityModel.aggregate([
+						{
+							$addFields: {
+								// Convert the createdAt field to GMT+7 by adding the offset
+								createdAtGMT7: {
+									$add: ["$createdAt", gmt7Offset],
+								},
+							},
+						},
+						{
+							$match: {
+								createdAtGMT7: {
+									$gte: new Date(
+										offsetToday
+											.toISOString()
+											.replace(/T(.+)/g, "T00:00:00.000Z")
+									),
+									$lt: new Date(offsetNextDay),
+								},
+							},
+						},
+						{
+							$project: {
+								_id: 1,
+								aqi: 1,
+								humidity: 1,
+								temperature: 1,
+								co: 1,
+								co2: 1,
+								tvoc: 1,
+								o3: 1,
+								pm25: 1,
+								calc_aqi: 1,
+								createdAt: "$createdAtGMT7",
+							},
+						},
+					]).exec();
+
+					console.log(hourlyAqi);
+
+					hourlyAqi = hourlyAqi.map((x) => {
+						return {
+							aqi: x.calc_aqi ?? x.aqi,
+							dateTime: `${x.createdAt.toISOString()}`,
+						};
+					});
+
+					console.log(hourlyAqi);
 
 					const compositeAqiObject = hourlyAqi.reduce((prev, curr) =>
-						prev > curr ? prev : curr
+						prev.aqi > curr.aqi ? prev : curr
 					);
 
 					var requestBody = {
@@ -29,8 +84,6 @@ const retrieveDailyAqi = async (agenda) => {
 						data: requestBody,
 					});
 
-					await HourlyAQIModel.deleteMany();
-
 					done();
 				} catch (error) {
 					console.error(error);
diff --git a/client/index.html b/client/index.html
index 8e17729..d7e7a4d 100644
--- a/client/index.html
+++ b/client/index.html
@@ -457,7 +457,7 @@ <h4 style="margin:6px 0">Solutions: </h4>
             <div class="divider"></div>
 
             <section class="forecast section">
-                <p data-i18n="forecast.title" style="margin-bottom: 1.5em;">Forecasting</p>
+                <p data-i18n="forecast.title" style="margin-bottom: 1.5em;">Forecast</p>
 
                 <div class="inner-wrap">
                     <div class="forecast-box">
diff --git a/iot/arduino/arduino.ino b/iot/arduino/arduino.ino
index fa664a6..b81eef4 100644
--- a/iot/arduino/arduino.ino
+++ b/iot/arduino/arduino.ino
@@ -65,7 +65,7 @@ void measureOpticalDustSensor() {
   Serial.print("PM2.5 voltage: ");
   Serial.println(voltage);
 
-  pm25 = 170 * voltage - 0.1; // unit: ug/m3
+  pm25 = (170 * voltage - 0.1) / 2; // unit: ug/m3
 
   Serial.print("PM2.5: ");
   Serial.print(pm25);
diff --git a/prediction-service/app.py b/prediction-service/app.py
index 8fa3210..4999f59 100644
--- a/prediction-service/app.py
+++ b/prediction-service/app.py
@@ -24,7 +24,7 @@
 best_model = load_model(best_model_filename)
 best_scaler = joblib.load(best_scaler_filename)
 
-MONGODB_URL="mongodb+srv://admin:Pa$$word!@aircheckercluster.yymawyw.mongodb.net/aircheckerdb?retryWrites=true&w=majority"
+MONGODB_URL="mongodb://localhost:27017/aircheckerdb"
 # MONGODB_URL="mongodb://localhost:27017/aircheckerdb"
 
 # Connect to MongoDB