N449BZ
Cessna Citation CJ4
United States
KJWN (John C Tune Airport, Nashville)

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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 decreasing vs prior period

Emissions Overview

0.5
Tons CO2 This Month
Below Average0.1× avg for Citation CJ4
2.1
Tons CO2 YTD
Below Average0.1× avg for Citation CJ4
18.8
CO2 Tons Since 2025
Below Average0.1× avg for Citation CJ4
Emissions Intensity0.00t CO₂/nmBelow Average0.6× avg for Citation CJ4
8.1 tons CO2 in selected period

2026 pace: On track for approximately 6t CO₂ by year end · ↓ 62% vs full year 2025 (17t)

Flight Patterns & Behaviour

Activity broadly consistent with prior period — averaging 0.7t CO₂/month

0.7t
CO₂/month
0.9t
Avg per flight
9
Distinct routes
Moderately Concentrated3 routes account for 49% of total emissions
Highest emission route
Nashville → Shreveport
1.5t CO₂ total · 0.0038t CO₂/nm
🇺🇸United States·16202 aircraft tracked·Ranked 1st by emissions among 109 countries·0.1× country averageBelow Average

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

What's ChangedCompared to prior equivalent period
Emissions
25%
10t → 8t CO₂
Intensity
11%
0.0043 → 0.0038 t CO₂/nm
New Routes
9
8t CO₂ combined
Dropped Routes
4
Prior period only
Avg per Flight
67%
2.6t → 0.9t
Flight Count
5
4 → 9 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

8t

Signals Detected

5

Highest Severity

Medium

Aircraft
Medium
New18 May – 24 May 2025
Elevated activity period · 1 flights in 6 days vs baseline of 0
Contributed approximately 1t CO₂ to period total — 12% of period emissions
Aircraft
Medium
New3 Jul – 16 Jul 2025
Elevated activity period · 2 flights in 13 days vs baseline of 0
Contributed approximately 1t CO₂ to period total — 17% of period emissions
Aircraft
Medium
New2 Oct – 8 Oct 2025
Elevated activity period · 2 flights in 6 days vs baseline of 0
Contributed approximately 2t CO₂ to period total — 27% of period emissions
Aircraft
Medium
Historical18 May – 9 Jul 2025
51-day inactive period
1.3t CO₂ in the 7 days following resumption
Aircraft
Medium
Historical15 Jul – 8 Oct 2025
85-day inactive period
2.1t CO₂ in the 7 days following resumption
Recent Flights
Feb 23, 20260.5t CO₂
KHZRNew Roads
KESFAlexandria
68 miles14m
Feb 22, 20260.5t CO₂
KESFAlexandria
KBTRBaton Rouge
90 miles18m
Jan 5, 20261.1t CO₂
KJWNNashville
KCRTCrossett
351 miles56m
Dec 28, 20251.1t CO₂
KJWNNashville
KELDEl Dorado
393 miles57m
View Details
Oct 8, 20250.5t CO₂
KDTNShreveport
KMLUMonroe
99 miles20m
View Details
Oct 8, 20251.5t CO₂
KJWNNashville
KDTNShreveport
464 miles1h 11m
View Details
Jul 15, 20250.6t CO₂
KFTWFort Worth
KBADBossier City
216 miles36m
View Details
Jul 9, 20250.8t CO₂
KNEWNew Orleans
KDTNShreveport
279 miles44m
View Details
May 18, 20251.0t CO₂
KSATSan Antonio
KDTNShreveport
348 miles50m
View Details
Mar 25, 20250.5t CO₂
KPWGWaco
KDTNShreveport
221 miles35m
View Details
Feb 16, 20250.7t CO₂
KAUSAustin
KDTNShreveport
282 miles41m
View Details
Jan 17, 20254.8t CO₂
KTTNEwing Township
KDTNShreveport
1,176 miles3h 6m
View Details
Jan 2, 20254.3t CO₂
MYBCChub Cay
KDTNShreveport
1,075 miles2h 49m
View Details
Top Airports by Emissions
Nashville

Nashville

KJWN

Total CO₂

3.8t

Total Visits

3

Avg CO₂/visit

1.3t

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

Shreveport

KDTN

Total CO₂

3.8t

Total Visits

4

Avg CO₂/visit

1.0t

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

El Dorado

KELD

Total CO₂

1.1t

Total Visits

1

Avg CO₂/visit

1.1t

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

Crossett

KCRT

Total CO₂

1.1t

Total Visits

1

Avg CO₂/visit

1.1t

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

Alexandria

KESF

Total CO₂

1.1t

Total Visits

2

Avg CO₂/visit

0.5t

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

San Antonio

KSAT

Total CO₂

1.0t

Total Visits

1

Avg CO₂/visit

1.0t

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Page 1 of 2
Top Routes by Emissions
Nashville Shreveport

KJWN to KDTN465 miles

Total Flights

1

Avg CO₂/Flight

1.5t

Total Emissions

1.5t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Nashville El Dorado

KJWN to KELD394 miles

Total Flights

1

Avg CO₂/Flight

1.1t

Total Emissions

1.1t CO₂

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

KJWN to KCRT352 miles

Total Flights

1

Avg CO₂/Flight

1.1t

Total Emissions

1.1t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
San Antonio Shreveport

KSAT to KDTN348 miles

Total Flights

1

Avg CO₂/Flight

1.0t

Total Emissions

1t CO₂

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

KNEW to KDTN280 miles

Total Flights

1

Avg CO₂/Flight

0.8t

Total Emissions

0.8t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Fort Worth Bossier City

KFTW to KBAD216 miles

Total Flights

1

Avg CO₂/Flight

0.6t

Total Emissions

0.6t CO₂

May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
Page 1 of 2