Table 1. Summary of SOA Chamber Experiments and Relevant Information^a.

oxidant	VOC source	exp ID	MTib	SQTib	Aroib	MeSAib	ΔVOCc	ΔSOAd	SOA yielde (%)
O3	aphid stressed	S-O3	120.4	72.8	40.2	6.1	157.7	10.9–16.4	6.9–10.4
	healthy	H-O3	148.9	5.9	20.6	1.4	82.3	8.0–12.0	9.7–14.6
	α-pinene	AP-O3	94.8				74.8	4.7–7.0	6.3–9.4
OH	aphid stressed	S-OH-1	68.6	52.7	9.0	4.2	125.6	22.2–33.3	17.8–26.6
	aphid stressed	S-OH-2	131.6	73.6	11.1	5.9	207.2	36.4–54.6	17.9–26.8
	healthy	H-OH-1	101.5	25.1	20.4	14.5	138.7	14.7–22.0	10.8–16.3
	healthy	H-OH-2	112.6	15.1	7.9	7.1	129.2	19.9–29.9	15.5–23.2
	α-pinene	AP-OH	45.2				43.4	2.6–3.9	6.0–9.1

^aAll units are μg m^–3 except where indicated otherwise.

^bMT_i, SQT_i, Aro_i, and MeSA_i refer to the initial concentration measured in the chamber before oxidation was initiated.

^cReacted VOCs were estimated as described in the text.

^dThe SOA formed in the chamber is estimated from SMPS data and corrected for particle wall losses, and the range is provided for SOA density from 1.0 to 1.5 g cm^–3. That range is reflected in the SOA yield also.

^eSOA yield was calculated as ΔSOA/ΔVOC.