ECs in the AIRBORNE_PARTICLE group

ECC_AEROSOL	ECC_AIRBURST_SMOKE	ECC_CLOUD	ECC_CLOUD_BASE
ECC_CLOUD_LAYER	ECC_CLOUD_TOP	ECC_DUST	ECC_DUST_SUSPENSION
ECC_FOG	ECC_FOG_REGION	ECC_FOG_SIGNAL_DEVICE	ECC_HAIL
ECC_HIGH_CLOUD	ECC_LOCALIZED_ATM_SUSPENSION	ECC_LOW_CLOUD	ECC_LOW_CLOUD_CEILING_REGION
ECC_MIDDLE_CLOUD	ECC_NON_AQUEOUS_CLOUD	ECC_PLUME	ECC_PUFF
ECC_SMOKE