There was previously no monitoring method and monitoring apparatus which could measure dioxins at ppt levels and dioxin precursors at ppb levels with high sensitivity. The method includes selecting a set of images having meta data and determining an attribute value for an attribute associated with each of the images. The CLASP system further comprises CLASP software operably running on a digital audio workstation which is also in operable communication with the CLASP unit. That gene is operatively linked to a plastid-directed transit peptide.