diff --git a/14062899_pm25.csv b/14062899_pm25.csv
index 68a0f2b38fbc4e2c129b5b71abcd5c887929dfd2..b07d6b22c6001283bda8295918fe76cc00400c2d 100644
--- a/14062899_pm25.csv
+++ b/14062899_pm25.csv
@@ -572,3 +572,4 @@ timestamp,value
 2025-01-28T08:37:19.998627,1.20
 2025-01-28T08:54:19.008950,0.98
 2025-01-28T09:11:22.769820,0.73
+2025-01-28T09:28:45.687863,0.90