diff --git a/partitles.json b/partitles.json
new file mode 100644
index 0000000..7181fe5
--- /dev/null
+++ b/partitles.json
@@ -0,0 +1,7 @@
+{
+    "co": "CO",
+    "no2": "NO<sub>2</sub>",
+    "no": "NO",
+    "pm10": "PM<sub>10</sub>",
+    "pm25": "PM<sub>2.5</sub>"
+}
\ No newline at end of file