Longgang

From the Hanyu Pinyin romanization of the Mandarin pronunciation of Chinese 龍港／龙港 (Lónggǎng, “Dragon Port”). As a Zhejiang city, a blend of its former name Longjiang Port Area (龍江港區/龙江港区, Lóngjiāng gǎngqū) adopted upon its elevation to town status in 1983. The name Longjiang itself derived from the "Qinglong River" (青龍江/青龙江), used locally for the lower Ao (鰲江/鳌江).

Longgang

1. A district of Huludao, Liaoning, China.
   • 2022 July 26, Shepherd, Christian; Vic Chiang, “A Chinese artist fights pollution with rock music”, in The Washington Post‎, archived from the original on 26 July 2022, Asia‎:

     Lei said the smell of exhaust gas from chemical plants in Huludao’s Longgang district is noticeable almost every day. “Sometimes there isn’t a noticeable odor but it just chokes you and makes you want to cough,” he said.

2. A city in Zhejiang, China.