COSMIC WEATHER, ATMOSPHERIC NANOAEROSOLS, and HUMAN HEALTH A.A. Lushnikov, Yu.S. Lyubovtseva, V.A. Zagaynov, and A.D. Gvishiani Geophysical Center of RAS,

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COSMIC WEATHER, ATMOSPHERIC NANOAEROSOLS, and HUMAN HEALTH A.A. Lushnikov, Yu.S. Lyubovtseva, V.A. Zagaynov, and A.D. Gvishiani Geophysical Center of RAS, Moscow, Karpov Institute of Physical Chemistry, Moscow

RIGHT AFTER THE SUN FLARE

COMING UP Introduction Cosmic weather and electrical state of the atmosphere Nanoaerosols, where are they from? Ion - aerosol interactions and cloud formation: from nanos to CCN Nanos – interactions with human organisms Concluding remarks

INTRODUCTION: ATMOSPHERIC AEROSOLS Clusters (size<1 nm) Nanoparticles ( nm) Submicron particles (50 – 100nm) Micron particles (100 – 1000 nm) Coarse particles (>1000nm)

Cosmic rays induced aerosol is coming up COSMIC RAYS ATMOSPHERIC IONS NUCLEATION CONDENSATION COAGULATION CLOUD CONDENSATION NUCLEI CLOUDS

Full model of aerosol formation

NUCLEATION BURST

Nucleation rate vs negative ion concentration

NUCLEATION BURST TIME SIZE

NUCLEATION BURST TIME SIZE

Condensation: transport from carrier gas Diffusion zone Kinetic zone R>>l a R

Characteristic lengths Ion mean free path Coulomb’s length

STRATOSPHERIC CLOUDS

CONCLUDING REMARKS From cosmic rays to clouds is one of the most important processes. The very existence of life is not possible without aerosols. Cosmic weather is the important factor that exerts formation of secondary aerosols in the atmosphere

NUCLEATION RATES

RATE OF CHARGE FORMATION

ANGSTROM EXPONENT and CN PRODUCTION

AE and CN CONCENTRATIONS

SOLAR ACTIVITY and AEROSOLS

Charge enhances condensational growth

Ion induced nucleation I

Ion induced nucleation II

1/cm 3 DIURNAL VARIATIONS OF PARTICLE NUMBER CONCENTRATION (lake Baikal)

Particle size distribution

Ion induced nucleation III

Ion induced nucleation IV

Mondy station / с m 3