Statistics: Journal of the Air and Waste Management Association
Geo Map
Region
#
NA - North America
153
AS - Asia, other
20
EU - Europe
4
SA - South America
1
Unknown
10
Total
188
Country
#
US - United States of America
153
CN - China
12
SG - Singapore
7
IE - Ireland
3
BR - Brazil
1
HK - Hong Kong
1
RU - Russian Federation
1
Unknown
10
Total
188
City
#
Singapore
5
Dublin
3
Jinan
2
Keller
2
Kunming
2
Amarillo
1
Belo Horizonte
1
Birmingham
1
Detroit
1
Guangzhou
1
other
169
Total
188
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Tot
2021
0 0
0 0 0 0
0 2 0 0
0 0
2
2022
0 0
0 0 0 0
0 0 0 1
0 1
2
2023
0 0
0 1 1 1
2 0 10 1
62 56
134
2024
2 0
0 0 2 2
0 2 2 0
0 2
12
2025
15 2
1 0 0 2
1 2 4 1
0 0
28
2026
4 3
3 0 0 0
0 0 0 0
0 0
10
Ever
188
Geo Map
| Region | # |
|---|---|
| NA - North America | 153 |
| AS - Asia, other | 20 |
| EU - Europe | 4 |
| SA - South America | 1 |
| Unknown | 10 |
| Total | 188 |
| Country | # |
|---|---|
| US - United States of America | 153 |
| CN - China | 12 |
| SG - Singapore | 7 |
| IE - Ireland | 3 |
| BR - Brazil | 1 |
| HK - Hong Kong | 1 |
| RU - Russian Federation | 1 |
| Unknown | 10 |
| Total | 188 |
| City | # |
|---|---|
| Singapore | 5 |
| Dublin | 3 |
| Jinan | 2 |
| Keller | 2 |
| Kunming | 2 |
| Amarillo | 1 |
| Belo Horizonte | 1 |
| Birmingham | 1 |
| Detroit | 1 |
| Guangzhou | 1 |
| other | 169 |
| Total | 188 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Tot | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 2 |
| 2022 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 2 |
| 2023 | 0 | 0 | 0 | 1 | 1 | 1 | 2 | 0 | 10 | 1 | 62 | 56 | 134 |
| 2024 | 2 | 0 | 0 | 0 | 2 | 2 | 0 | 2 | 2 | 0 | 0 | 2 | 12 |
| 2025 | 15 | 2 | 1 | 0 | 0 | 2 | 1 | 2 | 4 | 1 | 0 | 0 | 28 |
| 2026 | 4 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 |
| Ever | 188 | ||||||||||||