A Air pollution can be caused by emission of motor vehicles, such as CO. I IC. NO:? and others. Increasing emission sources would possibly cause a decrease in ambient air quality. Research was being conducted to know the concentration of carbon monoxide (CO) and nitrogen dioxide (NO~) at Kebun Rava Boger, West Java.Kebun Raya Bogor was founded in May I81h, IX 17 and its bordered by JalakMarupat street and Bogor State Palace on the north side, Otto lskandar Dinata street on the south side. Ir, H. Juanda street on the west side and Pajajaran street on the 1.•~''' ''""'Sampling points outside Kebun Raya Boger were designated uccorduig to the trafficjam points, which arc Ir. H. Juanda street, Otto lskandar Dinata street and l'ajajaran street. And sampling points inside Kcbun Raya Bogor arc designated according to the dominant wind (northeast) with the radius of JOO m from the outside sampling pomts. Carbon Monoxide (CO) measurement method used was Iodine Pe11111xide and Sa/1:mt111 Method for Nitrogen Dioxide (N02). Calculation method used for carbon monox idc ( C'O) and nitrogen dioxide (N02) outside Kcbun Raya Bogor is based on Box Mm.l1tl.The frist day, the carbon monoxide (CO) concentration outside was 257.9 ug/nr' and inside was 239,0 µg/m3. The second day, the carbon monoxide (CO) concentration outside was 173, 7 µg/m3 and inside was 220, 7 µg/m3. The third day, the carbon monoxide (CO) concentration outside was 148,2 ~Lg/m3 and inside was 200,9 ~Lg/m3.The frist day, the nitrogen dioxide (N02) concentration outside was 152.0 µg/m3 andinside was 96,7 µg/m3. The second day, the nitrogen dioxide (NO:) concentration outside was 156,1 µg/m3 and inside was 92,6 µg/m3. The third day, the nitrogen dioxide (N02) concentration outside was 152,9 ~tg/m3 and inside was 113,9 ug/m',Correlation between the amount of motor vehicles and carbon monoxide (CO)concentration outside Kcbun Raya Bogor was positive. Which meant that the increase or decrease in the amount of motor vehicles will increase or decrease the carbon monoxide (CO) concentration. On the contrary, negative correlation between the amount of motor vehicle and the nitrogen dioxide (N02) concentration. Its mean the increasing or dccrcasmg amount of motor vehicles will decrease or increase nitrogen dioxide (NO!) concentrationAs the threshold standard for carbon monoxide (CO) and mtrogen dioxide (N02)was used PP No. 41/1999, which arc 30000 µg/m.1 and 400 µg/m3. Concentrations of carbon •. monoxide (CO) and nitrogen diox ide (N02) on those 3 days outside and inside are still considered good.Air pollution can be caused by emission of motor vehicles, such as CO. I IC. NO:? and others. Increasing emission sources would possibly cause a decrease in ambient air quality. Research was being conducted to know the concentration of carbon monoxide (CO) and nitrogen dioxide (NO~) at Kebun Rava Boger, West Java.Kebun Raya Bogor was founded in May I81h, IX 17 and its bordered by JalakMarupat street and Bogor State Palace on the north side, Otto lskandar Dinata street on the south side. Ir, H. Juanda street on the west side and Pajajaran street on the 1.•~''' ''""'Sampling points outside Kebun Raya Boger were designated uccorduig to the trafficjam points, which arc Ir. H. Juanda street, Otto lskandar Dinata street and l'ajajaran street. And sampling points inside Kcbun Raya Bogor arc designated according to the dominant wind (northeast) with the radius of JOO m from the outside sampling pomts. Carbon Monoxide (CO) measurement method used was Iodine Pe11111xide and Sa/1:mt111 Method for Nitrogen Dioxide (N02). Calculation method used for carbon monox idc ( C'O) and nitrogen dioxide (N02) outside Kcbun Raya Bogor is based on Box Mm.l1tl.The frist day, the carbon monoxide (CO) concentration outside was 257.9 ug/nr' and inside was 239,0 µg/m3. The second day, the carbon monoxide (CO) concentration outside was 173, 7 µg/m3 and inside was 220, 7 µg/m3. The third day, the carbon monoxide (CO) concentration outside was 148,2 ~Lg/m3 and inside was 200,9 ~Lg/m3.The frist day, the nitrogen dioxide (N02) concentration outside was 152.0 µg/m3 andinside was 96,7 µg/m3. The second day, the nitrogen dioxide (NO:) concentration outside was 156,1 µg/m3 and inside was 92,6 µg/m3. The third day, the nitrogen dioxide (N02) concentration outside was 152,9 ~tg/m3 and inside was 113,9 ug/m',Correlation between the amount of motor vehicles and carbon monoxide (CO)concentration outside Kebun Raya Bogor was positive. Which meant that the increase or decrease in the amount of motor vehicles will increase or decrease the carbon monoxide (CO) concentration. On the contrary, negative correlation between the amount of motor vehicle and the nitrogen dioxide (N02) concentration. Its mean the increasing or dccrcasmg amount of motor vehicles will decrease or increase nitrogen dioxide (NO!) concentrationAs the threshold standard for carbon monoxide (CO) and mtrogen dioxide (N02)was used PP No. 41/1999, which arc 30000 µg/m.1 and 400 µg/m3. Concentrations of carbon monoxide (CO) and nitrogen diox ide (N02) on those 3 days outside and inside are still considered good.