NRDC: No Breathing in the Aisles: Diesel Exhaust Inside School ...

2. Load secon d A ethalo m eter in p as s en ger car , b ack s eat, d river’ s s id e.
3. S tr ap A ethalo m eter s s ecur ely in to p lace in vehicles.
4. O n bu s, attach in ver ter to battery u s in g cab les, tu rn o n inv erter , and p lug A ethalo m eter in to
inv er ter .
5. I n car, attach in ver ter to cigar ette ligh ter u sin g ad ap ter ; tur n on in ver ter, an d plu g
A ethalo m eter in to in verter.
6. V er if y there is s uf f icien t disc sp ace and s amp lin g ribb o n in each A ethalo m eter .
7. A ttach p lastic samp lin g h os es to inp u t valv e o n b ack of each A ethalo m eter .
8. Tur n on bo th A ethalo m eter s and o b serv e w ar m- u p seq uence ( 10 m inu tes) .
9. S et A ethalo m eter flow r ates to ap pr o ximately 4 liter s p er m inu te.
10. A ff ix in let o f bu s s am pling h os e to b ack seat, aisle, d river’ s s id e, us in g d uct tap e.
11. A ff ix in let o f car s am pling h os e to f ro nt s eat b etw een d river and p ass en g er .
Data-RAMs
1. Con nect th e s am plin g train fo r the p D R- 12 00 , includ in g p um p, cy clon e, an d zer oin g dev ice.
2. Tur n on pu mp an d ad jus t to ap pr o ximately 4 liter s p er m inu te.
3. Tur n on pD R- 1 20 0, zero , and calibr ate the in stru m en t.
4. Rem ov e the zero in g d ev ice.
5. Tou ch “N ex t” bu tton on p D R- 12 00 , then at “Lo gg in g D is ab led ” s cr een, to uch “En ter .”
S cr een s ho uld r ead “Lo g I ntrv l 6 0s ,” an d pr o vide a “Tag #.” Recor d the Tag nu mb er in th e
log bo ok . Tou ch “N ex t” rep eatedly u ntil given the op tion “S tar t Ru n: En ter ”—to uch “En ter .”
6. A ff ix p D R- 12 0 0 in p lace in back seat of p as s en ger car .
7. Zer o D ataRAM per ins tr uctio ns an d secur e in bu s, last ro w of seats , d river’ s s id e.
MONITORING
1. Check clock tim e on each A ethalo m eter , and o n each D ataRAM; p er s on r eco rd in g activ ity in
the log b oo k s ho uld s yn ch r on ize w atch es with th e o n- bu s A ethalo m eter an d recor d any
d if feren ces w ith th e car A ethalo m eter an d th e D ataRAMs .
2. N ote th e m an u factur er, ag e an d m od el, p as sen ger cap acity , an d V eh icle Id entif ication
N um ber ( VI N) of the scho o l bu s in th e log bo o k.
3. Collect 10 m inu tes o f data on -s ite id ling p r io r to depar tu re; d ur in g idling , th e f ro n t do or of
the b us sh ou ld remain op en.
4. Clo se all pas seng er wind o ws o n the b u s; if the d r iv er w ish es to h av e h is wind ow op en , this
s ho uld b e no ted in the lo gb oo k.
5. D rive d esign ated ro u te w ith p as s en ger car lead in g and b u s fo llo wing im med iately behin d;
6. U se s to p watch to tim e bu s s to ps at 1 minu te per s to p, an d 5 m in utes at th e final s to p o f th e
r ou te; d ur in g s to ps , the fr on t d oo r o f th e b us s h ou ld r emain op en .
7. A t 1 min ute inter vals, r eco rd b u s po s itio n and activity in th e lo gb o ok ; b us p os ition sh ou ld
inclu de in ter sectio n n am es, s tr eets, scho ols , or other lan dm ark s; b u s activ ity s ho uld inclu d e
w heth er th e b us is idlin g o r tr avelin g fast/slow , u ph ill, flat, o r d ow nh ill; ad d itio n al
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