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QCVN 05:2013/BTNMTQUY CHUN K THUT QUC GIA V CHT LNG KHNG KH XUNG QUANHNational Technical Regulation on Ambient Air Quality

Li ni u

QCVN 05:2013/BTNMT do T son tho quy chun k thut quc gia v cht lng khng kh bin son, Tng cc Mi trng, V Khoa hc v Cng ngh, V Php ch trnh duyt v c ban hnh theo Thng t s 32/2013/TT-BTNMT ngy 25 thng 10 nm 2013 ca B trng B Ti nguyn v Mi trng.

QUY CHUN K THUT QUC GIA V CHT LNG KHNG KH XUNG QUANH

National Technical Regulation on Ambient Air Quality

1. QUY NH CHUNG

1.1. Phm vi p dng

1.1.1. Quy chun ny qui nh gi tr gii hn cc thng s c bn, gm lu hunh ioxit (SO2), cacbon monoxit (CO), nit ioxit (NO2), zn (O3), tng bi l lng (TSP), bi PM10, bi PM2,5 v ch (Pb) trong khng kh xung quanh.

1.1.2. Quy chun ny p dng gim st, nh gi cht lng khng kh xung quanh.

1.1.3. Quy chun ny khng p dng i vi khng kh trong phm vi c s sn xut v khng kh trong nh.

1.2. Gii thch t ng

Trong quy chun ny cc thut ng di y c hiu nh sau:

1.2.1. Tng bi l lng (TSP) l tng cc ht bi c ng knh kh ng hc nh hn hoc bng 100 (m.1.2.2. Bi PM10 l tng cc ht bi l lng c ng knh kh ng hc nh hn hoc bng 10 (m.

1.2.3. Bi PM2,5 l tng cc ht bi l lng c ng knh kh ng hc nh hn hoc bng 2,5 (m.

1.2.4. Trung bnh mt gi l gi tr trung bnh ca cc gi tr o c trong khong thi gian mt gi.

1.2.5. Trung bnh 8 gi l gi tr trung bnh ca cc gi tr o c trong khong thi gian 8 gi lin tc.

1.2.6. Trung bnh 24 gi l gi tr trung bnh ca cc gi tr o c trong khong thi gian 24 gi lin tc (mt ngy m).

1.2.7. Trung bnh nm: l gi tr trung bnh ca cc gi tr o c trong khong thi gian mt nm.

2. QUY NH K THUT

Gi tr gii hn ca cc thng s c bn trong khng kh xung quanh c quy nh ti Bng 1.

Bng 1: Gi tr gii hn cc thng s c bn trong khng kh xung quanh

n v: Microgam trn mt khi ((g/m3)

TTThng sTrung bnh 1 giTrung bnh 8 giTrung bnh 24 giTrung bnh nm

1SO2350-12550

2CO30.00010.000--

3NO2200-10040

4O3200120--

5Tng bi l lng (TSP)300-200100

6Bi PM10--15050

7Bi PM2,5--5025

8Pb--1,50,5

Ghi ch: du ( - ) l khng quy nh

3. PHNG PHP XC NH

3.1. Phng php phn tch xc nh cc thng s cht lng khng kh thc hin theo hng dn ca cc tiu chun sau:

- TCVN 5978:1995 (ISO 4221:1980). Cht lng khng kh. Xc nh nng khi lng ca lu hunh ixit trong khng kh xung quanh, Phng php trc quang dng thorin.

- TCVN 5971:1995 (ISO 6767:1990) Khng kh xung quanh. Xc nh nng khi lng ca lu hunh ixit. Phng php Tetrachloromercurat (TCM)/Pararosanilin.

- TCVN 7726:2007 (ISO 10498:2004) Khng kh xung quanh. Xc nh Sunfua ixit. Phng php hunh quang cc tm.

- TCVN 5972:1995 (ISO 8186:1989) Khng kh xung quanh. Xc nh nng khi lng ca carbon monoxit (CO). Phng php sc k kh.

- TCVN 7725:2007 (ISO 4224:2000) Khng kh xung quanh. Xc nh carbon monoxit. Phng php o ph hng ngoi khng phn tn.

- TCVN 5067:1995 Cht lng khng kh. Phng php khi lng xc nh hm lng bi.

- TCVN 9469:2012 Cht lng khng kh. Xc nh bi bng phng php hp th tia beta.

- AS/NZS 3580.9.6:2003 (Methods for sampling and analysis of ambient air - Determination of suspended particulate matter - PM10 high volume sampler with size-selective inlet - Gravimetric method) - Phng php ly mu v phn tch khng kh xung quanh - Xc nh bi PM10 - Phng php trng lng ly mu c ln vi u vo chn lc c ht.

- AS/NZS 3580.9.7:2009 (Methods for sampling and analysis of ambient air - Determination of suspended particulate matter - Dichotomous sampler (PM10, coarse PM and PM2,5) - Gravimetric method) - Phng php ly mu v phn tch khng kh xung quanh - Xc nh bi - Phng php trng lng ly mu chia i (PM10, bi th v PM2,5).

- TCVN 6137:2009 (ISO 6768:1998) Khng kh xung quanh. Xc nh nng khi lng ca nit ixit. Phng php Griess-Saltzman ci bin.

- TCVN 7171:2002 (ISO 13964:1998) Cht lng khng kh. Xc nh zn trong khng kh xung quanh. Phng php trc quang tia cc tm.

- TCVN 6157:1996 (ISO 10313:1993) Khng kh xung quanh. Xc nh nng khi lng zn. Phng php pht quang ha hc.

- TCVN 6152:1996 (ISO 9855:1993) Khng kh xung quanh. Xc nh hm lng ch bi ca sol kh thu c trn ci lc. Phng php trc ph hp th nguyn t.

3.2. Chp nhn cc phng php phn tch hng dn trong cc tiu chun quc gia v quc t c chnh xc tng ng hoc cao hn cc tiu chun vin dn mc 3.1.

4. T CHC THC HIN

4.1. Quy chun ny p dng thay th QCVN 05:2009/BTNMT - Quy chun k thut quc gia v cht lng khng kh xung quanh ban hnh km theo Thng t s 16/2009/TT-BTNMT ngy 17 thng 10 nm 2009 ca B trng B Ti nguyn v Mi trng.

4.2. C quan qun l nh nc v mi trng c trch nhim hng dn, kim tra, gim st vic thc hin quy chun ny.

4.3. Trng hp cc tiu chun v phng php phn tch vin dn trong quy chun ny sa i, b sung hoc thay th th p dng theo vn bn mi.