Table 2.

Estimated exposure doses of EcoSan sludge.

Exposure route	How people may get exposed	How much and for how long	Estimated exposure days in a year		Estimated dose range in g per year		Estimated average doses in g per year
			FA	UDDT	FA	UDDT	FA	UDDT
Inhalation	Inhalation through aerosol in the air while walking outside where humus is stored, farming, emptying, and application in the field	0.1 g maximum per day for 6 months in a year, approximately 5 and 3 days a week in rural (FA) and periurban areas (UDDT), respectively	120	72	0–6	0–3.6	3.0	1.8
Ingestion	Accidental ingestion during pit emptying, transportation, application in the field without personal protection, and limited hand washing and through water and food contamination	Estimated at 0.1 g maximum per day for 4 days a year	4	4	0–0.4	0–0.4	0.2	0.2
Dermal contact	Skin contact through bare feet around household where humus is stored, emptying, and transportation and during application in the field	Estimated at 0.3 g maximum per day for 6 months in a year, approximately 5 and 3 days a week in rural (FA) and periurban areas (UDDT), respectively	120	72	0–36	0–21.6	18.0	10.8