**Author details**

industrial activities) for NO<sup>x</sup>

SO<sup>2</sup>

**3. Conclusions**

1. General Information:

2. Fuel use:

2.1 LPG

area sources, played an important role [1].

Point sources are the biggest emitters of NO<sup>x</sup>

**Source Emission parameters (tonne/year)**

16 Air Pollution - Monitoring, Quantification and Removal of Gases and Particles

**Table 7.** Total emissions from all sources in NKBT in 2014 (ton/year).

**A. Restaurants/households/street cookings**

and CO<sup>2</sup>

*Note: \* Only emission from on-road mobile source is for PM, and in* **Table 7** *considers it as PM*10*.*

amount of pollutants into the atmosphere. Also, household activities, which were classified as

On-road mobile sources 716.45 12,173.02 45.78 2178.91 134,268.86 183.52 Non-road mobile sources 27.76 27.75 2.16 3.32 4149.50 0.79 Point sources 1057.47 2630.90 34.19 801.32 660,124.38 10.14 Area sources 86.38 3044.44 165.82 460.88 93,191.24 380.26 **Total 1888.06 17,876.11 247.95 3444.43 891,733.98 574.71**

and PM10; and on-road mobile sources are the main emitters of CO and VOC (**Table 7**).

Emission inventory is a basic step of air quality management. There are several approaches of EI as described above, and based on each study area, considered using EI approaches consistent with the available data. High accuracy in EI is proportional to time consuming and costly and inversely. In general, less time and low cost are proportional with inaccuracy. And in general, an EI should be done annually or at least every 5 years to update the air emission status and to observe the

Restaurant/Households-Residential/Street cooking name: ............................................................. Address: ................................................................................................................................................... Phone: ...................................................................................................................................................... Fax: ........................................................................................................................................................... Coordination:…………………………………………N………………………………………………………E

trend of major air pollution sources and evaluate the effectiveness of air quality control.

and CO<sup>2</sup>

**NOX CO SO2 VOC CO2 PM10**

. It was found that on-road traffic emitted a significant

; area sources are the main emitters of

**\***

Ho Quoc Bang\* and Vu Hoang Ngoc Khue

\*Address all correspondence to: bangquoc@yahoo.com

Air Pollution and Climate Change Department, Institute of Environment and Resources (IER), Viet Nam National University Ho Chi Minh City (VNUHCM), Vietnam
