Longgang

From the Hanyu Pinyin romanization of the Mandarin 龍港／龙港 (Lónggǎng, “Dragon Port”).

• Of the city in Zhejiang: 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 (qīnglóng jiāng)), used locally for the lower Ao (鰲江／鳌江 (áo jiāng)).

Longgang

1. A district of Huludao, Liaoning, China.
   • 2022 July 26, Christian Shepherd, Vic Chiang, “A Chinese artist fights pollution with rock music”, in The Washington Post‎, →ISSN, →OCLC, 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.