From 621354471493359eda8e22bfb772ad68b092b07c Mon Sep 17 00:00:00 2001
From: ZhipengShen <szpssky@gmail.com>
Date: Mon, 4 Jul 2016 15:37:22 +0800
Subject: [PATCH] Add PM2.5 Data of China

---
 README.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/README.md b/README.md
index 951c2dac..96605edd 100644
--- a/README.md
+++ b/README.md
@@ -99,6 +99,11 @@ A collective list of JSON APIs for use in web development.
 | numverify API | Phone number validation | No | [Go!](https://numverify.com) |
 | vatlayer API | VAT number validation | No | [Go!](https://vatlayer.com) |
 
+### Environment
+| API | Description | OAuth | Link |
+|---|---|---|---|
+| PM2.5.in | PM2.5 Data of China | No, but apiKey query string | [Go!](http://www.pm25.in/api_doc) |
+
 ### Exchange
 
 | API | Description | OAuth | Link |