diff --git a/docs/indices/china.md b/docs/indices/china.md
index 7f89bd1..f51a82f 100644
--- a/docs/indices/china.md
+++ b/docs/indices/china.md
@@ -2,7 +2,7 @@
 
 ## Air Quality Index (AQI)
 
-## Summary
+## Background
 
 China’s Air Quality Index accounts for six primary pollutants: PM2.5, PM10, CO, O3, NO2 and SO2. A daily and real-time AQI is reported, along with a forecasting AQI.
 
diff --git a/docs/indices/hong-kong.md b/docs/indices/hong-kong.md
index 7c04af4..a44f09b 100644
--- a/docs/indices/hong-kong.md
+++ b/docs/indices/hong-kong.md
@@ -2,7 +2,7 @@
 
 ## Air Quality Health Index (AQHI)
 
-## Summary
+## Background
 
 The Air Quality Health Index (AQHI) accounts for 4 criteria pollutants: Particulate Matter (PM), O3, NO2 and SO2. For PM, both PM2.5 and PM10 are considered, however only the PM that poses the higher health risk is used in the AQHI calculation. Hong Kong reports hourly and forecast AQHIs.
 
diff --git a/docs/indices/india.md b/docs/indices/india.md
index ab29f24..9124da4 100644
--- a/docs/indices/india.md
+++ b/docs/indices/india.md
@@ -31,7 +31,7 @@ colorScale(colorScaleReshape(data))
 
 Note: Adapted from “National Air Quality Index” (2014) [http://app.cpcbccr.com/ccr_docs/FINAL-REPORT_AQI_.pdf](http://app.cpcbccr.com/ccr_docs/FINAL-REPORT_AQI_.pdf) [^1]. Accessed August 16, 2024. 
 
-## Method
+## Methods
 
 India uses a sub-index method where the index value for each pollutant is calculated according to the following breakpoints:
 
@@ -69,7 +69,7 @@ Monitoring sites are then averaged weighted by the population of the 2km x 2km g
 
 Other specifics around the computation of the city AQI are outlined by the CPCB and are out of scope for this document.
 
-## Reference
+## References
 
 “About National Air Quality Index.” Central Pollution Control Board, [[cpcb.nic.in/displaypdf.php?id=bmF0aW9uYWwtYWlyLXF1YWxpdHktaW5kZXgvQWJvdXRfQVFJLnBkZg==](https://cpcb.nic.in/displaypdf.php?id=bmF0aW9uYWwtYWlyLXF1YWxpdHktaW5kZXgvQWJvdXRfQVFJLnBkZg==)](http://cpcb.nic.in/displaypdf.php?id=bmF0aW9uYWwtYWlyLXF1YWxpdHktaW5kZXgvQWJvdXRfQVFJLnBkZg==](https://cpcb.nic.in/displaypdf.php?id=bmF0aW9uYWwtYWlyLXF1YWxpdHktaW5kZXgvQWJvdXRfQVFJLnBkZg==)).
 
diff --git a/docs/indices/malaysia.md b/docs/indices/malaysia.md
index 9c8a43c..fc92740 100644
--- a/docs/indices/malaysia.md
+++ b/docs/indices/malaysia.md
@@ -31,7 +31,7 @@ const data = parseBreakpointsCsv(breakpoints);
 colorScale(colorScaleReshape(data))
 ```
 
-## Method
+## Methods
 
 The API uses a sub-index method, wherein an index value is calculated for each of the measured pollutants, then the final API value is chosen from the highest sub-index value of all pollutants evaluated. There is no guidance on the minimum number of pollutants to be included in the calculation. Specific guidance on rounding/truncation is also not included in the source material.
 
@@ -59,9 +59,6 @@ After all sub-indices for a station are computed, the maximum sub-index value is
 {API} = {Max}({I}_{PM_{10}},{I}_{PM_{2.5}},SI_{SO_{2}},{I}_{SO_{2}},{I}_{O_{3}},{I}_{CO})
 ```
 
-## Example
-
-
 ## References
 
 [https://apims.doe.gov.my/pdf/API_Calculation.pdf](https://apims.doe.gov.my/pdf/API_Calculation.pdf> 
diff --git a/docs/indices/taiwan.md b/docs/indices/taiwan.md
index feef740..e904a94 100644
--- a/docs/indices/taiwan.md
+++ b/docs/indices/taiwan.md
@@ -2,7 +2,7 @@
 
 ## Air Quality Index (AQI)
 
-## Summary
+## Background
 
 ```js
 
@@ -91,8 +91,6 @@ For SO<sub>2</sub> using a 1-hour averaging period, the real-time concentration
 
 For NO<sub>2</sub>, the real-time concentration is equal to the monitoring data at the time of reporting. A rounding convention is not specified.
 
-## Example
-
 ## References
 
 [1]<https://airtw.moenv.gov.tw/ENG/Information/Standard/AirQualityIndicator.aspx>
diff --git a/docs/indices/uk.md b/docs/indices/uk.md
index c8b3c93..a91811f 100644
--- a/docs/indices/uk.md
+++ b/docs/indices/uk.md
@@ -2,7 +2,7 @@
 
 ## Daily Air Quality Index (DAQI)
 
-## Overview
+## Background
 
 The United Kingdom’s Daily Air Quality Index (DAQI) accounts for five primary pollutants: PM2.5, PM10, O3, NO2 and SO2. The DAQI displays the air quality for the previous day. A forecast AQI also provides information on predicted pollutant levels for the next 5 days.
 
diff --git a/docs/indices/us.md b/docs/indices/us.md
index 853cc8b..af9dc46 100644
--- a/docs/indices/us.md
+++ b/docs/indices/us.md
@@ -2,7 +2,7 @@
 
 ## Air Quality Index (AQI)
 
-## Overview
+## Background
 
 The United States of America (US) uses an Air Quality Index that accounts for PM<sub>2.5</sub>, PM<sub>10</sub>, CO, O<sub>3</sub>, NO<sub>2</sub>, and SO<sub>2</sub>. The US reports a daily AQI as well as a NowCast and Forecast AQI.