Referring Clues

• Kind of alert
• Urban haze
• Effect of auto exhaust
• Alert subject
• Visibility reducer
• Some urban air
• Urban blight
• Air pollution
• Los Angeles woe
• Air apparent?
• E.P.A. concern
• Portmanteau pollution mixture
• Target of clean air laws
• Unpleasant hangover?
• Grimy air
• Scenery spoiler
• It may be difficult to drive in
• Urban problem
• View disrupter
• Cause of an air alert
• Clean Air Act target
• Haze
• It might hang over your head
• It might make you short of breath
• Urban pollution
• Big city problem
• View blocker
• Possible cause of heavy breathing
• Cause of some urban coughs
• Air that makes you go [cough, cough]
• Cause of a bad air day?
• Air condition
• Eye irritant
• Urban air problem
• Pollution problem
• EPA concern
• Urban health hazard
• Layer over big cities
• EPA topic
• Big city pollution problem
• Visibility obstructer
• Factory fallout
• Bad air
• Product of UV rays and car exhaust
• Air woe watched by the EPA
• Los Angeles problem
• Pollution you can see
• Mexico City pollutant
• Atmospheric irritant
• Outdoor breathing hazard
• Industrial-strength air?
• L.A. problem
• Cause of a bad air day
• Hazardous driving condition
• Unhealthy air
• Skyline blurrer
• Pollutant containing nitrogen dioxide
• Air pollution portmanteau
• City scenery blurrer
• Urban health problem
• Reason for an air quality alert
• Cough cause
• Industrial problem
• Mexico City woe
• City blight
• Big city bane
• Sky blight
• L.A. flaw?
• Gray blanket
• Industrial pollutant
• Metropolitan hangover?
• Unhealthful skyline obscurer
• Feature of a bad air day
• Industrial haze
• Urban hazard
• Pollution portmanteau
• Troubling haze
• Hazy layer
• Visibility hindrance
• Urban woe
• Skyline obscurer
• Urban concern
• Component of urban air
• Air quality concern
• Atmospheric pollution
• Urban pollutant
• Metro-area haze
• Unwelcome cloud
• Industrial curse
• Houston air problem
• City haze
• Clean air hurdle
• Unhealthy visibility reducer
• Los Angeles bane
• Environmentalist's concern
• Sooty sunblocker
• Big city haze
• Obscuring cloud
• Air pollutant
• Feature of a bad air day?
• Visible air
• City skyline blurrer
• Pollution that may sting the eyes
• Visibility problem
• Pollution mixture
• Visibility obstacle
• L.A.'s haze
• Its main ingredient is ozone
• Factory overhead?
• Traffic consequence
• L.A. haze
• EPA concern *
• Visible air pollution
• Hazardous haze
• Urban miasma
• Type of air pollution
• Subject of an exhaustive E.P.A. study?
• Urban bane
• Something in the air
• Urban pall
• Houston problem
• Factor in an air quality rating
• Unpleasant blanket
• Unwanted cloud
• Smoke and fog mix
• Environmental concern
• Environmental portmanteau
• Vista spoiler
• Skyline haze
• Emissions consequence
• Lung irritant
• Los Angeles haze
• ___ Monster (foe of Godzilla)
• Polluted air
• Metropolitan visibility issue
• San Joaquin Valley concern
• Beijing environmental issue
• EPA worry
• Alert cause in Los Angeles
• Sun blocker
• Dirty air
• An EPA concern
• Suffocating blanket
• Emissions results
• Environmental menace
• Environmental problem
• What can take your breath away in L.A.?
• Urban pollution problem
• Urban ill
• Big city blight
• Dangerous blanket
• It may be thick in L.A. or Houston
• Mexico City sight
• Blanket produced in Mexico City
• Concern of 11-Across
• Subject of an alert
• Hazy pollution
• Noxious cloud
• Unacceptable air
• Clean Air Act concern
• L.A. or Houston problem
• Beijing skyline haze
• Bad big city air
• Kind of pollution
• Certain pollutant
• Beijing problem
• Mexico City problem
• Some factories contribute to it
• Unhealthy air component
• Airborne urban hazard
• Alert subject?
• Beijing bane
• City skyline obscurer
• It might leave one breathless
• Irritating blanket
• Cause of a municipal alert
• Beijing blight
• Veil of tears?
• Urban air pollution
• Health hazard
• Dirty blanket
• Detriment to air quality
• Target for the Clean Air Act
• Skyline hider
• It's hardly a breath of fresh air
• Environmental bane
• San Joaquin Valley problem
• Blighted air
• Eye-irritating pollution
• Urban air concern
• Urban view obscurer
• Air quality issue
• Cityscape obscurer
• Bad city air
• Portmanteau word
• Airport hazard
• Air problem
• Air woe
• Unhealthy mist
• Pollution
• Air quality problem
• Obstacle to a city planner's vision?
• Beijing skyline feature
• Unhealthy, polluted air
• Bad air to breathe
• Thick polluted mist
• Polluted mist
• Minneapolis "supergroup" Golden ___
• Dan Murphy group Golden ___
• Golden ___ of Minneapolis
• Fog and smoke mix
• Smoking people out brings a bad atmosphere
• Portmanteau that, when heavy, hampers driver
• Polecat produces foul air
• Man-made atmospheric pollution
• Bad visibility caused by emissions from chimneys
• Urban irritant
• Asthmatic's bane
• Try writing about pollution
• Polluted atmosphere
• Pollution - 24 down!
• Air pollution first to suffocate Tiddles
• Metropolitan haze
• Freeway byproduct
• Beijing environmental problem
• Pollution type
• Environmental woe
• Industrial-zone feature
• Air Quality Index factor
• Pollution haze
• Some regularly flee rising pollution
• Pea-souper
• Smoky fog
• Air apparent?
• City air problem
• Metropolitan air problem
• Fog
• Unhealthful haze
• Cause for some alerts
• Beijing blanket
• Layer of haze
• Pollution from car emissions, in part
• Cause of respiratory woes
• Visibility spoiler
• Shadow over L.A.
• Cause of an air quality alert
• Air impurifier
• Smoke and fog
• Urban portmanteau
• Metropolitan visibility problem
• Urban alert cause
• Unwanted blanket
• Air quality reducer
• Industrial portmanteau
• ___ alert
• City choker
• Urban eye irritant
• Skyline-obscuring pollution
• Urban blanket
• Result of atmospheric inversion
• Industrial settler?
• Gray blanket?
• Consequence of traffic emissions
• Pollution in the sky
• L.A. overlay
• New Delhi air problem
• Asthma trigger
• Reason for a bad air day?
• Visible pollution
• Air that can sting the eyes
• *Urban pollution (letters 1 to 2 +...)
• San Joaquin Valley haze
• Cause of bad air quality
• Haze in Los Angeles
• Smoking a family out can be bad for health
• Mixture of fog and fumes
• Pollution that reduces visibility
• Overhead cost of manufacturing?
• Dangerous Beijing blanket
• City hazard
• Haze in cities
• Air that can make you cough
• Air condition?
• Contributor to low visibility
• Pollution that often obscures the L.A. skyline
• Emissions concern
• Pollution in city skies
• Delhi issue
• Atmospheric condition that can be caused by wildfires
• Cause of some breathing problems
• Q: What happens when the ___ clears over Los Angeles? A: UCLA!
• Unfresh air
• Nasty hangover?
• Potential cause of a respiratory problem
• Possible cause of a cough
• Hazy stuff
• It's hard to see through
• Cause of low visibility in some cities
• Dark cloud on the horizon?
• Industrial polluted air
• City's haze
• Brown sky cause
• Clean Air Fund target
• Hollywood haze
• Pollution that can change the colors of a sunset
• Sign of air pollution
• Air quality factor
• Ecological portmanteau since 1905
• Pollution over Los Angeles
• Air that can make one cough
• Environmental concern in Dr. Seuss's "The Lorax"
• Unhealthy haze
• Ecological concern
• It's all a haze
• Bad air day factor
• Manufacturer's gross product?