Emissions Inventory Update – July 2006

1. Several negations from agencies and individuals in the past


2. Large variations in the inventory estimates


3. Confounding facts on major source to be resuspended dust


4. Lack of ground survey database for supporting the inventory


5. Issues related to Emission Factor been not local (AP-42 used for estimates)

Slums

1. Survey of 500 households in different areas of Pune


2. Based on Fuel type, quantity, area of kitchen, windows, no of family members, hours of cooking

Hotels and Restaurants

1. Survey of 50 hotels in different areas of Pune


2. Based on Fuel type, quantity, seating capacity hours of cooking, ventilation arrangement, area of the hotel, stack details (if available)

Street Vendors

1. Survey of 76 vendors in different areas of Pune


2. Based on Fuel type, quantity, type of food prepared, moving or fixed position of operation duration of operation

Mobile Sources

1. Survey of 12 junctions using videography and 19 roads using manual counting


2. Based on earlier reports, major traffic junctions, major roads, 2W, 3W, cars, buses & trucks


3. Counting has not yet been completed for all the roads

Summary

The experience of emissions inventory development in Pune has revealed the fact that local variables need to be identified and measured for estimating emission factors.

Primary surveys forms essential part of the entire study.

Continual updating of the inventory is a must and also authenticity of the database needs to be reflected throughout the study.

However, one of the facts that have come out over and over again in all the inventories is that resuspended dust is the major contributor to PM10 in Pune