N137JQ
Cessna Citation CJ4
United States
HWD (Hayward Air Terminal Airport, Hayward)

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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 Overview

0.0
Tons CO2 This Month
Below Average0.0× avg for Citation CJ4
4.7
Tons CO2 YTD
Below Average0.2× avg for Citation CJ4
104.4
CO2 Tons Since 2025
Typical0.8× avg for Citation CJ4
Emissions Intensity0.00t CO₂/nmBelow Average0.6× avg for Citation CJ4
82.8 tons CO2 in selected period

2026 pace: On track for approximately 14t CO₂ by year end · ↓ 86% vs full year 2025 (100t)

Flight Patterns & Behaviour

Activity broadly consistent with prior period — averaging 6.9t CO₂/month

6.9t
CO₂/month
2.3t
Avg per flight
29
Distinct routes
Diverse Network3 routes account for 22% of total emissions
Highest emission route
Hayward → New Orleans
6.2t CO₂ total · 0.0037t CO₂/nm
🇺🇸United States·16202 aircraft tracked·Ranked 1st by emissions among 109 countries·0.3× country averageBelow Average

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

What's ChangedCompared to prior equivalent period
Emissions
>300%
19t → 76t CO₂
Intensity
3%
0.0039 → 0.0041 t CO₂/nm
New Routes
28
75t CO₂ combined
Dropped Routes
9
Prior period only
Avg per Flight
48%
1.6t → 2.3t
Flight Count
21
12 → 33 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

39t

Signals Detected

5

Highest Severity

Medium

Aircraft
Medium
New23 May – 29 May 2025
Elevated activity period · 2 flights in 6 days vs baseline of 1
Contributed approximately 6t CO₂ to period total — 8% of period emissions
Aircraft
Medium
New12 Jun – 18 Jun 2025
Elevated activity period · 1 flights in 6 days vs baseline of 1
Contributed approximately 4t CO₂ to period total — 6% of period emissions
Aircraft
Medium
New12 Aug – 9 Sept 2025
Elevated activity period · 8 flights in 28 days vs baseline of 3
Contributed approximately 18t CO₂ to period total — 23% of period emissions
Aircraft
Medium
Historical8 May – 28 May 2025
20-day inactive period
6.1t CO₂ in the 7 days following resumption
Aircraft
Medium
Historical29 May – 17 Jun 2025
20-day inactive period
4.9t CO₂ in the 7 days following resumption
Recent Flights
Mar 25, 20261.3t CO₂
KUVAUvalde
KGKYArlington
285 miles1h 4m
Jan 7, 20262.1t CO₂
KGYHGreenville
KAPFNaples
595 miles1h 29m
Jan 4, 20262.2t CO₂
KGSOGreensboro
KAPFNaples
696 miles1h 35m
Dec 14, 20251.8t CO₂
KNEWNew Orleans
KAPFNaples
569 miles1h 20m
View Details
Dec 13, 20256.2t CO₂
KHWDHayward
KNEWNew Orleans
1,904 miles3h 55m
View Details
Dec 12, 20254.1t CO₂
KPVWPlainview
KHWDHayward
1,164 miles2h 42m
View Details
Dec 3, 20250.5t CO₂
KPBIWest Palm Beach
KAPFNaples
110 miles23m
View Details
Dec 1, 20250.5t CO₂
KTPATampa
KAPFNaples
134 miles29m
View Details
Nov 7, 20253.5t CO₂
KGKYArlington
KAPFNaples
1,024 miles2h 20m
View Details
Nov 6, 20252.7t CO₂
KPHXPhoenix
KGKYArlington
863 miles1h 53m
View Details
Nov 5, 20255.4t CO₂
KGKYArlington
KONTOntario
1,185 miles3h 29m
View Details
Oct 23, 20250.5t CO₂
KFXEFort Lauderdale
KAPFNaples
99 miles24m
View Details
Oct 23, 20254.4t CO₂
KTEBTeterboro
KFXEFort Lauderdale
1,070 miles2h 52m
View Details
Oct 16, 20253.4t CO₂
KAUSAustin
KAPFNaples
1,006 miles2h 16m
View Details
Oct 9, 20250.5t CO₂
KLZULawrenceville
KCEUClemson
78 miles13m
View Details
Oct 8, 20253.7t CO₂
KFTGDenver
KLZULawrenceville
1,202 miles2h 26m
View Details
Oct 3, 20250.5t CO₂
KBCTBoca Raton
KAPFNaples
104 miles32m
View Details
Sep 14, 20252.4t CO₂
KGSOGreensboro
KAPFNaples
696 miles1h 40m
View Details
Sep 9, 20252.8t CO₂
KSPXGalveston
KAPFNaples
843 miles1h 56m
View Details
Sep 9, 20255.2t CO₂
KHWDHayward
KHOUHouston
1,632 miles3h 22m
View Details
Sep 8, 20251.6t CO₂
KLASLas Vegas
KHWDHayward
400 miles1h 13m
View Details
Aug 30, 20250.5t CO₂
KPBIWest Palm Beach
KAPFNaples
110 miles21m
View Details
Aug 20, 20252.3t CO₂
KAPADenver
KGKYArlington
643 miles1h 37m
View Details
Aug 19, 20253.0t CO₂
KHWDHayward
KAPADenver
940 miles2h 4m
View Details
Aug 18, 20251.3t CO₂
KCRQCarlsbad
KHWDHayward
415 miles1h 1m
View Details
Aug 16, 20251.0t CO₂
KPHXPhoenix
KCRQCarlsbad
306 miles53m
View Details
Jul 27, 20250.5t CO₂
KPBIWest Palm Beach
KAPFNaples
110 miles26m
View Details
Jul 12, 20250.5t CO₂
KMCOOrlando
KAPFNaples
160 miles32m
View Details
Jun 18, 20250.5t CO₂
KMYFSan Diego
MM23
257 miles35m
View Details
Jun 17, 20254.4t CO₂
KDALDallas
KMYFSan Diego
1,175 miles2h 51m
View Details
May 29, 20252.5t CO₂
KTUSTucson
KGKYArlington
808 miles1h 44m
View Details
May 28, 20253.6t CO₂
KHOUHouston
KTUSTucson
943 miles2h 24m
View Details
May 8, 20250.5t CO₂
KTPATampa
KAPFNaples
134 miles28m
View Details
Apr 30, 20252.0t CO₂
KHWDHayward
MM23
694 miles1h 26m
View Details
Apr 28, 20251.4t CO₂
KCRQCarlsbad
KHWDHayward
415 miles1h 7m
View Details
Apr 23, 20251.5t CO₂
KAUSAustin
MMTCTorreon
474 miles1h 8m
View Details
Apr 23, 20250.5t CO₂
KFTWFort Worth
KAUSAustin
182 miles33m
View Details
Mar 20, 20252.1t CO₂
KGYHGreenville
KPBIWest Palm Beach
574 miles1h 32m
View Details
Mar 19, 20252.6t CO₂
KDALDallas
36NCGreensboro
990 miles1h 49m
View Details
Mar 5, 20252.1t CO₂
KHWDHayward
MM23
694 miles1h 30m
View Details
Feb 21, 20250.5t CO₂
KFLLFt Lauderdale
KMKYMarco Island
95 miles30m
View Details
Feb 3, 20250.6t CO₂
KMYFSan Diego
NaN miles36m
View Details
Feb 2, 20254.3t CO₂
KAUSAustin
KMYFSan Diego
1,159 miles2h 49m
View Details
Jan 22, 20250.5t CO₂
KFLLFt Lauderdale
KAPFNaples
101 miles31m
View Details
Jan 5, 20250.5t CO₂
KAPFNaples
KPBIWest Palm Beach
110 miles24m
View Details
Top Airports by Emissions
Naples

Naples

KAPF

Total CO₂

22.4t

Total Visits

15

Avg CO₂/visit

1.5t

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

Hayward

KHWD

Total CO₂

21.5t

Total Visits

6

Avg CO₂/visit

3.6t

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

Arlington

KGKY

Total CO₂

17.7t

Total Visits

6

Avg CO₂/visit

3.0t

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

Houston

KHOU

Total CO₂

8.8t

Total Visits

2

Avg CO₂/visit

4.4t

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

New Orleans

KNEW

Total CO₂

8.0t

Total Visits

2

Avg CO₂/visit

4.0t

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

Tucson

KTUS

Total CO₂

6.1t

Total Visits

2

Avg CO₂/visit

3.0t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Page 1 of 5
Top Routes by Emissions
Hayward New Orleans

KHWD to KNEW1,905 miles

Total Flights

1

Avg CO₂/Flight

6.2t

Total Emissions

6.2t CO₂

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

KGKY to KONT1,185 miles

Total Flights

1

Avg CO₂/Flight

5.4t

Total Emissions

5.4t CO₂

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

KHWD to KHOU1,633 miles

Total Flights

1

Avg CO₂/Flight

5.2t

Total Emissions

5.2t CO₂

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

KGSO to KAPF696 miles

Total Flights

2

Avg CO₂/Flight

2.3t

Total Emissions

4.6t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Teterboro Fort Lauderdale

KTEB to KFXE1,071 miles

Total Flights

1

Avg CO₂/Flight

4.4t

Total Emissions

4.4t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Dallas San Diego

KDAL to KMYF1,176 miles

Total Flights

1

Avg CO₂/Flight

4.4t

Total Emissions

4.4t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Page 1 of 5