salton sea air quality · 2020. 3. 15. · above: salton sea air quality infographic these projects...
TRANSCRIPT
-
SALTON SEA AIR QUALITY MITIGATION PROGRAM2019 Overview
Contents• Proactive Mitigation• Program Components• Activity & Progress• Implementation At-a-glance
-
PROACTIVE MITIGATION
In order to proactively address air quality mitigation requirements, the IID developed a science-based, adaptive Air Quality Mitigation Program. The Program provides the framework to estimate emissions from the playa and the desert, and to plan and implement dust control measures on targeted playa areas. Proactive mitigation is currently planned or implemented on over 1,900 acres of playa with high emissions potential.
AT THE SALTON SEA
2
-
Above: Salton Sea Air Quality Infographic
These projects provide dust control, as well as experience in scaling and adapting dust control measures to efficiently achieve control at a larger scale. This approach allows effective use of resources to help protect the public health of communities near and around the Salton Sea.
3
-
SALTON SEA AIR QUALITY MITIGATIONPROGRAM COMPONENTS
ESTIMATE EMISSIONS PLAN & DESIGN IMPLEMENT & MONITOR
1 2 3
4
The annual Emissions
Estimate identifies the
location and magnitude
of emissions potential
on exposed playa and in
adjacent desert areas.
The Emissions Estimate
informs the prioritization
of areas for proactive dust
control. It also provides an
understanding of desert
emissions, including areas
of sand intrusion from
alluvial fans and dunes
that can affect the playa.
The annual Proactive Dust
Control Plan describes
recommendations for
site-specific dust control
measures based on
rigorous evaluation of the
surface characteristics
and emissions potential.
This evaluation considers
soil suitability, the
availability of water
resources, other planned
stakeholder projects, and
more.
Surface roughening and
vegetation are the most
common dust control
measures, each providing
effective and water-
efficient control. After
implementation, dust
control measures are
monitored to confirm
that adequate surface
stabilization is achieved
and maintained.
-
5
The infographic at above provides information about each program component, including activity and progress
at each step. This is a cyclical process that repeats each year, providing a growing amount of knowledge to
address air quality mitigation at the Salton Sea.
PROGRAM COMPONENTSACTIVITY & PROGRESS
Above: Air Quality Mitigation Program Infographic
-
IMPLEMENTATION AT-A-GLANCE
Surface Roughening is implemented with a tractor and common tillage equipment, such as a bull plow or a switch plow. This dust control measure is effective, waterless, and can be quickly implmented. It is typically recommended for areas with fine soil texture. Field studies conducted as part of the Air Quality Mitigation Program inform the surface roughness configurations and the combination of tillage implements best suited for creating and maintaining large, durable ridges that promote dust control.
6
Surface Roughening as Dust Control at the Salton Sea
-
7
Vegetation as Dust Control at the Salton Sea
Vegetation is recommended for dust control areas where the soils are too coarse for Surface Roughening. The native Iodine Bush (Allenrolfea occidentalis) is the primary species used due to its salinity tolerance. Field studies implemented as part of the Air Quality Mitigation Program inform important guidelines on seeding and germination, soil reclamation, soil amendments and groundwater depth needed for successful vegetation establishment on the playa.
-
Questions?F o r m o r e i n f o r m a t i o n o n I I D ’s S a l t o n S e a A i r Q u a l i t y M i t i g a t i o n P r o g r a m ,
p l e a s e v i s i t w w w. i i d . c o m / a i r q u a l i t y .
S e n d q u e s t i o n s t o a i r q u a l i t y @ i i d . c o m