record_id,interval_start_utc,interval_end_utc,interval_mean_ppm,status
M01,2026-01-15T09:00:00+00:00,2026-01-15T09:01:00+00:00,0.000,valid
M02,2026-01-15T09:01:00+00:00,2026-01-15T09:02:00+00:00,0.200,valid
M03,2026-01-15T09:02:00+00:00,2026-01-15T09:03:00+00:00,0.200,valid
M04,2026-01-15T09:03:00+00:00,2026-01-15T09:04:00+00:00,0.200,valid
M05,2026-01-15T09:04:00+00:00,2026-01-15T09:05:00+00:00,,missing
M06,2026-01-15T09:05:00+00:00,2026-01-15T09:06:00+00:00,,missing
M07,2026-01-15T09:06:00+00:00,2026-01-15T09:07:00+00:00,0.400,valid
M08,2026-01-15T09:07:00+00:00,2026-01-15T09:08:00+00:00,0.400,valid
M09,2026-01-15T09:08:00+00:00,2026-01-15T09:09:00+00:00,0.100,valid
M10,2026-01-15T09:09:00+00:00,2026-01-15T09:10:00+00:00,0.000,valid
M11,2026-01-15T09:10:00+00:00,2026-01-15T09:11:00+00:00,0.000,valid
M12,2026-01-15T09:11:00+00:00,2026-01-15T09:12:00+00:00,0.000,valid
M13,2026-01-15T09:12:00+00:00,2026-01-15T09:13:00+00:00,0.000,valid
M14,2026-01-15T09:13:00+00:00,2026-01-15T09:14:00+00:00,0.000,valid
M15,2026-01-15T09:14:00+00:00,2026-01-15T09:15:00+00:00,0.000,valid
M16,2026-01-15T09:15:00+00:00,2026-01-15T09:16:00+00:00,0.000,valid
M17,2026-01-15T09:16:00+00:00,2026-01-15T09:17:00+00:00,0.000,valid
M18,2026-01-15T09:17:00+00:00,2026-01-15T09:18:00+00:00,0.000,valid
M19,2026-01-15T09:18:00+00:00,2026-01-15T09:19:00+00:00,0.000,valid
M20,2026-01-15T09:19:00+00:00,2026-01-15T09:20:00+00:00,0.000,valid