Table 1 Information of 10 sampling sites in the Peral River Delta Region in this study.

From: Regional source apportionment of trace metals in fine particulate matter using an observation-constrained hybrid model

City

Site group

Site nature

Site name

Longitude (E)

Latitude (N)

No. of obs.a

Guangzhou

NS

Suburban

Nansha

113.6025

22.7525

56

Macao

MC

General urban

Porto Exterior

113.5583

22.1967

62

Taipa Grande

113.5650

22.1600

62

Hong Kong

HK combined (HKc)

General urban

Central/West

114.1444

22.2853

59

Tung Chung

113.9436

22.2889

59

Tsuen Wan

114.1144

22.3717

59

Yuen Long

114.0228

22.4456

59

KC

Shipping terminal

Kwai Chung

114.1271

22.3586

59

MK

Roadside

Mong Kok

114.1683

22.3228

59

WB

Suburban

Clear Water Bay

114.2675

22.3378

60

3 cities

6 groups

4 types

10 sites

N/A

N/A

594 obs.

  1. a The sampling frequency was one 24-h sample every 6 days, which generated ca. 60 samples at each collection site.