N440QS
Gulfstream GIV
United States
HND (Tokyo International Airport, Tokyo)

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Viewing period:
Compared to: preceding 12 months · May 2024 – May 2025
May 2025 – Apr 2026·vs May 2024 – May 2025· Emissions increasing vs prior period

Emissions Overview

29.6
Tons CO2 This Month
Below Average0.7× avg for GIV
51.9
Tons CO2 YTD
Below Average0.4× avg for GIV
242.0
CO2 Tons Since 2025
Below Average0.3× avg for GIV
Emissions Intensity0.01t CO₂/nmTypical0.8× avg for GIV
139.5 tons CO2 in selected period

2026 pace: On track for approximately 156t CO₂ by year end · ↓ 18% vs full year 2025 (190t)

Flight Patterns & Behaviour

Activity broadly consistent with prior period — averaging 12.7t CO₂/month

12.7t
CO₂/month
8.2t
Avg per flight
17
Distinct routes
Moderately Concentrated3 routes account for 40% of total emissions
Highest emission route
Taichung (Qingshui) → Tokyo
27.2t CO₂ total · 0.0226t CO₂/nm
🇺🇸United States·16202 aircraft tracked·Ranked 1st by emissions among 109 countries·0.7× country averageBelow Average

Subject to FAA oversight — no mandatory carbon reporting for private aviation

What's ChangedCompared to prior equivalent period
Emissions
38%
101t → 140t CO₂
Intensity
22%
0.0139 → 0.0109 t CO₂/nm
New Routes
15
129t CO₂ combined
Dropped Routes
3
Prior period only
Avg per Flight
51%
16.8t → 8.2t
Flight Count
11
6 → 17 flights

Route and airport counts may include data processing artefacts.

Spikes

Significant deviations from this aircraft's baseline in the selected period.

CO₂ Above Baseline

164t

Signals Detected

5

Highest Severity

High

Aircraft
Medium
New22 Jun – 28 Jun 2025
Elevated activity period · 1 flights in 6 days vs baseline of 0
Contributed approximately 4t CO₂ to period total — 3% of period emissions
Aircraft
High
New23 Aug – 29 Sept 2025
Elevated activity period · 7 flights in 37 days vs baseline of 2
Contributed approximately 66t CO₂ to period total — 48% of period emissions
Aircraft
Medium
New6 Feb – 22 Mar 2026
Elevated activity period · 5 flights in 44 days vs baseline of 3
Contributed approximately 32t CO₂ to period total — 23% of period emissions
Aircraft
Medium
Historical28 Jun – 29 Aug 2025
62-day inactive period
41.1t CO₂ in the 7 days following resumption
Aircraft
Medium
Historical29 Sept 2025 – 12 Feb 2026
136-day inactive period
20.1t CO₂ in the 7 days following resumption
Recent Flights
Mar 28, 20266.8t CO₂
VHHHHong Kong
NaN miles1h 41m
Mar 22, 202616.0t CO₂
RJTTTokyo
ZGOWJieyang (Rongcheng)
1,618 miles3h 48m
Mar 1, 202610.1t CO₂
VHHHHong Kong
ZBADBeijing
1,196 miles2h 26m
Feb 23, 20262.1t CO₂
VHHHHong Kong
ZSAMXiamen
307 miles36m
View Details
Feb 15, 202613.3t CO₂
RJGGNagoya
VHHHHong Kong
1,629 miles3h 11m
View Details
Feb 15, 20264.7t CO₂
RJCCSapporo
RJAATokyo
489 miles1h 12m
View Details
Feb 12, 20262.0t CO₂
VMMCNossa Senhora do Carmo
RJCCSapporo
2,151 miles17m
View Details
Sep 29, 20254.6t CO₂
RCTPTaoyuan (Dayuan)
VMMCNossa Senhora do Carmo
524 miles1h 11m
View Details
Sep 18, 20254.0t CO₂
RCLG
VMMCNossa Senhora do Carmo
470 miles1h 2m
View Details
Sep 18, 202512.4t CO₂
RJTTTokyo
RCSSTaipei City
1,302 miles2h 58m
View Details
Sep 5, 20259.0t CO₂
RJTTTokyo
ZSWHWeihai
981 miles2h 11m
View Details
Sep 1, 202527.2t CO₂
RCMQTaichung (Qingshui)
RJTTTokyo
1,382 miles6h 21m
View Details
Sep 1, 20258.5t CO₂
RKSSSeoul
RCMQTaichung (Qingshui)
988 miles2h 4m
View Details
Aug 29, 20252.0t CO₂
RKSSSeoul
RKJM
195 miles27m
View Details
Aug 29, 20253.4t CO₂
RJTTTokyo
NaN miles54m
View Details
Jun 28, 20259.3t CO₂
VGHSDhaka
ZGBSBaise
1,046 miles2h 16m
View Details
Jun 22, 20254.2t CO₂
RJTTTokyo
RJDCUbe
495 miles1h 5m
View Details
Apr 22, 202531.9t CO₂
RJTTTokyo
WSSLSingapore
3,293 miles7h 26m
View Details
Apr 1, 20258.1t CO₂
RJTTTokyo
RKSISeoul/Incheon
751 miles1h 58m
View Details
Mar 30, 20255.1t CO₂
RKSISeoul/Incheon
NaN miles1h 17m
View Details
Mar 30, 202512.5t CO₂
RJTTTokyo
NaN miles2h 59m
View Details
Jan 5, 202534.0t CO₂
RJTTTokyo
WSSLSingapore
3,293 miles7h 56m
View Details
Jan 2, 20259.4t CO₂
VHHHHong Kong
VTBDBangkok
1,049 miles2h 16m
View Details
Top Airports by Emissions
Tokyo

Tokyo

RJTT

Total CO₂

72.2t

Total Visits

6

Avg CO₂/visit

12.0t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Taichung (Qingshui)

Taichung (Qingshui)

RCMQ

Total CO₂

35.7t

Total Visits

2

Avg CO₂/visit

17.8t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Hong Kong

Hong Kong

VHHH

Total CO₂

32.3t

Total Visits

4

Avg CO₂/visit

8.1t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Jieyang (Rongcheng)

Jieyang (Rongcheng)

ZGOW

Total CO₂

16.0t

Total Visits

1

Avg CO₂/visit

16.0t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Nagoya

Nagoya

RJGG

Total CO₂

13.3t

Total Visits

1

Avg CO₂/visit

13.3t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Taipei City

Taipei City

RCSS

Total CO₂

12.4t

Total Visits

1

Avg CO₂/visit

12.4t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Page 1 of 4
Top Routes by Emissions
Taichung (Qingshui) Tokyo

RCMQ to RJTT1,383 miles

Total Flights

1

Avg CO₂/Flight

27.2t

Total Emissions

27.2t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Tokyo Jieyang (Rongcheng)

RJTT to ZGOW1,620 miles

Total Flights

1

Avg CO₂/Flight

16.0t

Total Emissions

16t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Nagoya Hong Kong

RJGG to VHHH1,630 miles

Total Flights

1

Avg CO₂/Flight

13.3t

Total Emissions

13.3t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Tokyo Taipei City

RJTT to RCSS1,303 miles

Total Flights

1

Avg CO₂/Flight

12.4t

Total Emissions

12.4t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Hong Kong Beijing

VHHH to ZBAD1,197 miles

Total Flights

1

Avg CO₂/Flight

10.1t

Total Emissions

10.1t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Dhaka Baise

VGHS to ZGBS1,047 miles

Total Flights

1

Avg CO₂/Flight

9.3t

Total Emissions

9.3t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Page 1 of 3